<human>: I'm 19, currently in my second year of college, and I feel completely worthless because I'm watching all of my relationships end again.

I've always had issues with people. Between struggling with mild paranoia, social anxiety, and depression, its always been hard for me to find the initial connection with someone to start a relationship.  Once I get past that and can actually talk with someone, everything is fine for a while. But, somehow all of my relationships keep ending abruptly. 

Most recently, I graduated high school, and almost every single one of my classmates stopped communicating with me before the week was over.  

In addition, any time I've tried to start, or even hinted at wanting to start a serious or romantic relationship with a girl, I've either been immediately rejected, or "friend zoned" and then slowly shut out completely. 

Now my last few friends from high school are graduating and leaving, and I'm a few months from being completely alone, and I don't know what to do. I've never had to go out and find new friends before, all of my relationships have started over a shared forced activity (usually school). 

Every night I come home, and my parents try to ignore my problems, and won't help me do anything about them. I've started having more bouts of depression, and its making it hard to sleep and keep to a normal schedule. My grades have been dropping, and I've lost the drive for most hobbies I used to enjoy.

The entire reason I've been going to college is because I want to be able to get a job and support a family, but lately it feels like I'm just going to end up spending the rest of my life alone.

I have to fix this, but I don't know how.

Give me a shortened version of the text
<bot>: My relationships keep ending, I don't know how to make new and better ones, and I'm depressed because I feel like I'm going to die alone.