It's okay to put your everything into a project, going 70ish hours over 6 days is necessary sometimes to get things done. But that being said, you need to have a goal that you reach that is within your control. Getting 1.0 done by Halloween might be in your control and you have probably already done it. Get it to a state where it is playable, you have a list of features that you want in the game, and there are no game breaking bugs that you run into through the full playthrough and then release it. If there are other bugs, they'll be fixed with patches, players will understand.
When you reach your goal, take a break and look at what you have done and be proud of it. Try to celebrate with friends and family and think about all the hard work you did and what it took to get where you are because no matter the success of it, it is successful to you because you did something that is hard and not many people in the world can do, so it's never wasted effort.
Also you should try to take care of yourself mentally and when you are ready, (in my opinion) look for another place to make money. It takes a long time for something that you create to fully prosper and start generating wealth, some people get lucky but most don't. Things take time, maybe this project isn't the financial success you want it to be but maybe the next one is or maybe something will happen once you release 1.0. You can make more games or this could be the stepping stone that launches a fruitful game development career at a company or you find someone to make a team with at a game jam or something.