<human>: Provide a brief overview of the text.

So, I know it's sad. A little bit of a backstory before I say I need help:

I've dealt with issues of depression (up and down) for 13 years now; and I've never been able to climb my way out. There are times where I am happy with myself and then a week later I can't seem to do anything right. I've been getting better about not feeling down about myself but being down about being lonely.

About four years ago I was diagnosed with Stage IV Hodgkin's Lymphoma. Luckily I am now 3 years cancer free; but I had to gain a lot of weight because of it. (When I was diagnosed I was less than 130lbs I'm 5'6. After my treatments I went up to 205lbs because of my depression and I didn't realize how much I had gained) I met a girl during that time but I was burned pretty bad. Sadly, online relationships are a horrible idea; but due to my condition and I hadn't met a girl in nearly a year during that time I figured it would help. 

Most of the relationships I got into ended up like that; I was either cheated on or left because of my own self-sabotage (depression, not in love with person). I currently have a crush on a former coworker who I hang out with a lot because of my friends; we all used to work together and I haven't told her how I feel for fear of her not being around because of me.

Since that time I've tried and tried to get help and ask advice from friends but I feel like I'm burdening them with the same questions or pathetic whining. I don't want to ask for help but I feel that if I don't; it's only going to get worse.

So what I'm asking is this: Those of who have been like this before, how I do turn this around to where I can feel good about myself and finally be able to talk to women and find someone.
<bot>: Can't seem to be happy about myself, suffer from lots of depression and have relationship issues. How do I fix this?