I loved your questions very much, and I will try to answer them all gradually based on my experience. You might find in them what you truly need. 
First Question:
What are the laws of God that he has built himself upon? Are they the Laws of One?
If it is the Law of One, I would say to you: You are always on the right path as long as pleasing the Creator is always your goal. As long as the Creator is in your heart, let life flow completely through you and do not fear anything, for everything around you is alive and loves being alive. The living Creator wants us to be like Him, letting life flow through us to everything around us with love. Embark on the journey of life and do not prevent yourself from any experience. As long as God is always in your heart and in every step you choose, let Him be with you as a friend, companion, and lover. Always think: If the great Creator were in my place, what would He do out of love? The Creator does not reject any experience we live as long as our intention is that He is present in it and for His sake. All experiences turn to your benefit, even if you thought they were wrong; your intention to please the Creator will be the result of them. Do everything you want with love; it will be right and beneficial for you and others. If you do it out of fear and are dissatisfied with yourself afterward, there is no problem. Forgive yourself, understand it, and always draw it toward love in every experience.
Not all experiences that stem from fear are wrong or forbidden. A lot of fear exists within us to protect us, sometimes even from ourselves, which we do not fully understand yet. To reduce your fear and expand your love, you must accept fear and see the good in it. Accept your fear and always ask your guides and the Creator to guide you in every step.
To know your main personality within you, you must create it to be above all those personalities that have formed over the past years. To be the one that gathers them and unifies them, making them return to it.
How do we create it?
In truth, it exists in our depths and starts to become clear when we begin to observe ourselves. As we get to know all those personalities formed within us, we try to understand when they were formed, who they were influenced by, and from whom they adopted those ideas or feelings. Why do they feel this specific way in certain situations? Are these feelings real, or are they the result of specific programming and judgments? Adopted from family, friends, school, society, or religion? Are they by your choice? Are they real, or are they just a repetition of a life pattern stemming from recurring thoughts in our minds?
All these questions and investigations make the main personality, the seeker of truth within you, gradually become the leader of all those surrounding personalities.
And of course, with all this, one must always remind themselves that love is the way, love is the guide, and devotion to the truth, and honesty with oneself are among the fundamentals of the path. The path of knowing oneself, understanding, and accepting it to become the Creator is not a shortcut and is not always filled with flowers and beautiful feelings, especially in this dimension with the thick veil placed between consciousness and the sources of the unconscious. We must always search and dig in deep, unclear, and very dark wells due to the veil, but the true joy of reaching and reconciling with a personality within you, and being satisfied with and loving and accepting it as it is, is very beautiful.
First, get to know all your false selves, accept them as they are with the intention of serving the Creator, no matter what. After understanding them and accepting them as they are and embracing them like your children, the existence of the divine mother through you deepens. She embraces all her children with unconditional love, and through her love for them, they all transform into love for their mother, serving her and allowing her to lead them.
The true personality is determined through love and acceptance. The true personality itself begins to appear in layers; it is not initially a single divine personality. It is a set of divine models, each with its traits necessary for life. However, I always love and prefer the personality of the divine mother Sophia, full of love, mercy, and wisdom. Maybe because I am currently in a female body and my role is greatly related to females. Any personality within you becomes divine when you grant it true love and acceptance.
Regarding the feeling of the joy of living, it becomes strongly present after what I call complete detachment from most judgments and reaching the Creator’s wisdom within you. The truth is that it is very difficult to achieve constant joy in this density because when you start living by the Law of One and applying it, you begin to merge with others, or call it absorbing the energies of others against your will and uniting with them. Consequently, their thoughts, beliefs, and feelings reach you, which is truly a difficult matter. This makes you often flounder and get lost and move away from your true self, which you have reached and felt sometimes. Therefore, you undergo a continuous process of being pulled and pushed, mostly being pulled out of it by your continuous flowing love for the Creator that you seek within yourself or within everyone.
The passion that fills you in seeking the Creator in every moment of your life is one of the main tools to live the moment with the Creator always.
For me, I feel that it pulls me and always pulls me in a specific direction that I cannot deviate from. When I started the spiritual path about eight years ago, I found myself and what I want from life. I always wanted to continue on this path and kept searching with great passion until the day came when the path started pulling me in a way stronger than me completely. All my days and moments became connected to this goal.