I feel like, for some reason, I am not able to ask interesting questions here anymore. So it would probably be better to have my account closed. Still I asked some well-received questions in the past that might be of interest to some people, if any, so I would rather not see them deleted. Is there a way to do so ?
Of course. Deletion of your account does not mean your posts are deleted. A complete description of what it means is given here: What EXACTLY happens when I ask to delete my account?
I'm an amateur mathematician (with studies in mathematics), from my point of view, I do not know you more than read some of your posts, your posts seem to me that contain a great level of abstract mathematics. It is required to be a professional mathematician to get an idea of the quality of your ideas (notice that I know that the most of your posts were well received).
I tell you my advices in next paragraphs. My motivation is that I think that you've very good skills in mathematics and, from my opinion you need these kind of advices (nexts).
$\cdot$ That don't delete your account. My belief is that to be a mathematician isn't a half-time job, is a life. The restlessness to research in mathematics is part of your life (and it will be presented to you today and tomorrow).
$\cdot$ If you dream is to research in mathematics ask for help in your profile information: in what field of mathematics you would like to work and what is the work/papers of mathematicians that inspire you. I am saying a direct call to work and learn with some professor/colleague with the purpose to research in mathematics in those fields that you would like to explore.
$\cdot$ As I said my opinion is that some of your questions include abstract ideas, maybe you can to combine with experiments (computational evidence showing a conjecture or a feasible theorem).
$\cdot$ Since you're member of this community from many years and I believe that you did this work in your free time, I think that is a good idea that you need to rest a few days/months, say us a month or two, to see things with another perspective. A good idea is to read some books of travels, listen music or see documentaries. After you can to visualize your project in this site Math Overflow in different circumstances.
Of course if you think that my post is off topic feel free to comment it, and I should to delete. Isn't required a response, good luck.