<human>: Hello reddit, 
My story is admittedly almost odd, I don't want to talk about my life too much, so I'll put it simply. I am a 19 year old male whom has been in a strict relationship for 5 years, my problem is that I wasn't "allowed" to talk to people other then my girlfriend (cringing but I actually did it, kicking myself now) but the why and what happened aren't important. 

The point is I'd just left high school., I went through college with my girlfriend ect. So after a break up that caused me to develop server depression, social anxiety and PTSD, I fix myself up. I get back into uni and want a fresh start. However I don't have intra personal skills, they haven't developed past high school age. I am so lonely and I just want to improve myself, I'd really appreciate some help at the lowest point of my life. 

I'm aiming for a straight first in my degree and am somewhat good at what I do (because I never got to talk to anyone I stayed in the library revising and waiting for my girlfriend). I have some friends, however I need to teach myself the social skills that are needed. I don't want to be Johnny bravo, I just want to restore some normality, I'm terrified the damage done to me is irreversible. Again reddit, please help.

Condense the text into a few key points
<bot>: Lets say somebody is an intelligent 20 year old, but never developed social skills past high school age what should be done?