I'm thinking of making a profile on an online dating site, but I'm pretty nervous about it. [Really Long]

I'm 22, and only in the last year have I had any self-confidence at all. I've been chronically depressed and anxious my whole life, and now that I'm finally getting some help, I've been able to accept myself and move on from there.Now that I have come out and started to enjoy life, I find myself wanting to be with someone, as I have never been in a relationship. However, I'm still pretty anxious, and am pretty introverted, at least when I meet a new person. Once I get to know someone, I get a bit looser and louder and can have more fun. It's just that first bit that's being so troublesome. I'm way too shy to approach someone at a pub or something, and the only gay bar in town scares me so much, I've never been able to go inside. It goes against everything I've told myself over this last year: Try new things, go out of your comfort zone, talk to people. Basically I've told myself to just go inside. Just walk through the door, look around, and sit down at the bar. There's no shame in leaving once I've gone in and seen what the place is about. However, I can't seem to get past the first bit of just going inside.Honestly, I've never even come close.I'm working on that, and I do want to go in there one of these days. However, my university doesn't have an LGBT group other than a small activist group, which is very closed off and unwelcoming, and is really not my cup of tea.That leaves few options. I've been spending more time on campus, at the pub, sitting outside in the nice weather, etc. and just talking to people. That's obviously pretty limiting. What I haven't tried yet is online dating.I'm planning on making an OkCupid profile sometime soon, but I'm pretty nervous about it. I have some paranoia about putting personal details on the internet, which is dumb because online dating is THE DEFINITION of putting personal details on the internet.I'm also afraid of giving people the wrong impression. I don't want to meet up for a hookup, or anything like that. I pretty much just want a "hey let's go to a coffee shop and get to know each other" kind of thing.Lastly, I have some self-esteem problems. I'm making efforts to lose weight, and I am losing some weight, but I'm still pretty fat. I also have a whole lot of mental health issues (obviously), and I get pretty down on myself when I think of how unfair it is to expect someone to just accept those things and deal with my bullshit.Sorry this has been so long, I've had a lot to get off my chest.Do any of you guys have any advice for me? I'm pretty lost.