I've got no friends, either - Well, no friends offline, anyway - and it is hard, and I do sympathise with you.
Just a few days ago I found it hard to post here because it's such a big, busy community compared to the ones I'm used to, but you'll find a topic to post in and people will reply to you, and that'll be it. I'm like it on many forums, as are a lot of others, I'm sure. I found that once I could revert back to my 'main' name (i.e. Lairiana) and get my avatar, I was set as I got my 'identity' back.
As has been said above, just keep posting, browse topics that interest you and be yourself 🙂