As a pixel artist, I originally wanted to make games solo. It took me so many years just to find the spark to make my first game. The crazy thing was that the game only took me 1 week to create but like 4 years just to get the kick to create it. As soon as I joined a jam team for the first time, game development was much more fun and we ended up making several little games nonstop. I'd say that if you want to go solo, you should still experience working in teams for a while so that you are more familiar with the game dev process and learn with each other as you go since your teammates have different strengths. Even if you are going solo, it's better to ask your fellow game devs for feedback anyway.