While I have no doubt that this is a liberating practice for you, for anyone else reading, you can also actually become a real shaman in pretty much any shamanic tradition, and I know many people who who have done that.
This is, in fact, an excellent way to fill your life with meaning and connection if it's something you're called to.
I agree. This was my path which came out of about 20 years of research and experience. It is usual to get an initiation from others, be part of a lineage, etc. My route was the hard way, I spent my time in the wilderness and paid my dues in my own way.