I have a friend who got into an incubator with a crypto idea and very positive feedback on the idea. Six months after funding, the whole thing imploded due to personal conflict. At the time, my friend had recently up with his girlfriend of five years and the venture ran out of steam. They ended up returning the money to investors. When the crypto bubble hit he was kicking himself having just missed out.
After that, he took a break to go overseas and recuperate. As I write this, my friend has just closed a $1m seed round for his next project and is well on the way to rolling it out. Last night he popped the question to his now fiance. It's important to remember that startups are a marathon, not a sprint. Roll with the punches, learn from your mistakes and keep on hustling :).