Making your own religion?

I believe that dedication and belief can create/strengthen any sort of deity, guardian, spirit, or similar, and it’s continued faith even by just a single person that gives them life, so ‘making up’ your god and religion isn’t fundamentally much different to a religion with a large amount of practitioners. In fact, having this very personal belief may allow you to have a much closer bond with your deity, if you wish to work with them that way, and perhaps the idea for your religion was one already instilled into you by your god. I don’t have any specific questions but if you’d like to explain any parts of it you want to share I’d love to hear. I’m not religious myself, just interested in the concept, but I do have a lot of respect for those who practice lesser known or completely individual religions.

All religions start from somewhere. Why should it be any less valid that one is starting from you?

If you truly believe in the system you've created, then it's as valid as anyone else's. Good luck with your spiritual journey. Make sure to look after yourself :)