It can certainly be frustrating when a game isn't working out like it should.
If you are feeling burnt out, you need to evaluate the cause or causes.
If it's because you're working on your game several hours a day, consider scaling back to just 1 hour a day. Unless you're in a Game Jam, developing a game should be in the mindset of a marathon, not a sprint.
If your game is full of bugs, that can be a bigger issue, but thankfully there are several options:
- You can go back to a version that was working properly.
- You can add in or use log files and debug tools to help find your problems.
- Ask other developers using the same Game Engine or programming language or tools to see how they would fix the problem.
- If it's still messy, the "nuclear option" would be to just start over. I actually did this with one of my games that I had already been working on for about a year. It was a very hard decision, but ultimately the right one because I've been able to make a lot more progress. I've seen this quote on Instagram a lot -- when you are starting over, you are not starting from scratch, you are starting from experience.