So I m a 30 male and I didnt a relationship or even a date in 10 years. I always thought I was just depressed and needy because of this. 

I dont want to self diagnose but here are some symptoms I think could match.

- Often waking up depressed, feeling worthless and lonely

- Mood cycles from really low self esteem to stable and back to low every 4-5 days.

- Getting needy with every girl who shows me attention.

- Deleting phone contacts, making plans to distance from all my friends when in bad mood.

- Hitting the wall when angry/depressed.

- Doing drugs impuslively when there is an opportunity.