If you put that much effort into it, and you like it, it would be silly not to release it. Like writing a novel and then putting it in a box under your bed. I spent a couple of years writing and record my album. A life goal of mine. It is a jazz album, which is a small market, so I didn’t feel it was worth the hassle and expense to get it on the streaming services where it would go unnoticed anyway. So I released it on NoiseTrade.com and BandCamp.com. And it got about 75 downloads. LOL. Which is not bad for zero promotion. I wish there was a “Medium” for music.
How are you planning to release it?