I can count several years that were the worst of my life and it didn't make sense to go on -- my first year of graduate school when I got my life's worst grades, my girlfriend left me, I didn't have time for my hobbies, my roommates didn't pay bills in my name and broke my things, etc; also the year my first company almost wen bankrupt and I felt I couldn't trust anyone. Those experiences and getting out of them put my problems today in perspective.
I jump out of bed every morning. I love my work and the people I work with http://joshuaspodek.com/podcast. I'm passionate about my projects. There are hard challenges, but taking them on is the source of my purpose and gives me meaning.
I often feel bad and in those moments I wouldn't write like this. Sometimes I feel like giving up, but past disasters and my lessons from them tell me those moments will pass. My practices of regular exercise, a healthy diet, and sleeping a minimum that's right for me most nights are a solid foundation to build on.
I wrote my books on the NYU courses I teach that develop this lifestyle https://www.amazon.com/Initiative-Proven-Method-Bring-Passio... and https://www.amazon.com/Leadership-Step-Become-Person-Others/....