For me it's absolutely vital to keep progressing in life apart from work/programming. When you're so busy building a product, you forget to take care of yourself.
Go for a walk without a phone once a week. You have to go back to your "self" once in a while.
Get the right amount of sleep. Too little sleep will fuck you up.
Be ok with feeling burned out. It's too easy to feel bad about feeling bad and will get you nowhere
For me it's absolutely vital to keep progressing in life apart from work/programming. When you're so busy building a product, you forget to take care of yourself.