Is it normal that i almost never talk to anyone at school at all?

So... I'm a very awkward girl when I'm at school I think (college, I'm 21-years-old). I don't have any friends at school. I don't get bullied anymore, but I just don't have anyone to talk to. When somebody talks to me I, of course, answer. It's just normally about school work or something else really uninteresting.

I don't stumble when I speak, but I talk pretty soft, so people often ask me what I said. That makes me super uncomfortable and I feel shivers everywhere, and get really warm, and my face turns red. I feel like I'm about to die sometimes.

I've talked my way out of all the presentations I had to give in front of the classroom, because my biggest fear is screwing up when everybody is looking at you. And that's generally what I do, I screw up when I get attention from lots of people.

It's not that I don't like attention, I seriously want to get attention from everybody, but I just feel a giant load of pressure when I'm the centre of attention. I'm usually really talkative when I'm alone with somebody, but that lately doesn't happen anymore. Also when I used to talk to a friend of mine, I could talk quite a bit, but when somebody else joined the conversation, I completely shut down. I would just stand there saying completely nothing listening to both of them talk.

I just feel really alone all the time, but I can't make friends because of this problem. I've never had a boy- or girlfriend (I'm bi), because I'm not much fun to talk to, and can't step up to people.

I honestly am not too insecure when it comes to my appearance, I've been told lots of times I'm an attractive girl, so it must be the way I act so awkwardly all the time.

I recently started living completely on my own, and it makes me feel even more alone. I've had suicidal thoughts, but I don't think I will ever act upon them.