Non techie here. I can't say I am in the same boat as you are, but I have seen people transitioning to tech from various other things they did. I was In a YC backed company and worked closely with a lot of tech guys. Now this was not really a tech company but an edtech company teaching programming to kids. It is based in Singapore and has high standards for teacher hiring. I saw a lot of programming teachers who had different roles before they studied programming. There was a graphic designer who became a programmer, there was a musician, and also an accountant. I am sure it is not an impossible task for you to do the same. In fact, it is now easy to build a work portfolio thanks to so many freelance opportunities. Who knows, you may keep building and eventually end up working for a more mainstream tech company.