Been there many times and know this pain personally so well. I have been game developing as a hobby for around 4 years now and every single time I make a game I set my expectations way too high, start working on the difficult tasks until I eventually burn out and stop. So I don't really have any finished games in the past 4 years, but have couple dozen prototypes instead. But every time I learn something new from them, so that's a plus.
This time I plan to do it differently and will not give up until I make something fun and playable