In my 20s I went through a period of total failure, nothing was going my way. Most of it was due to self inflicted pressure, I didn't know how to manage expectations. Looking back, I needed a break. I should have walked away from everything for a few months, recharge my batteries and get back in the game. I didn't and I got burned out. Hindsight is a b**ch.
After what I viewed as a massive failure, I felt like a loser. It took me a long time to recover, almost two years.
I'm mentally and physically in a much better shape at the moment.
TBH, there are still a few things that I need to do in order to better my life. Despite my failure at the time, I worked hard and there are lots of bits of information and skills that I can use, but every single time I try to tap into those mental resources I still feel the pain. I want to use those skills to set up my own company, but it's no use if still feel the mental pain.