I relate to this so much. I've been sick for six years, so I had to drop out of college and haven't gone back, nor can I work. So of course all of my friends except two stopped bothering with me. The two that I have are busy so I never see them. I've made one friend who's my best friend and we hung out while he was here, but he lives in Sri Lanka, so...can't hang out anymore. So I completely get what you're saying. I hardly leave the house, so making friends is impossible. But for you, I'd say, if you have the money, perhaps when you've found a job or if you can find a free one, maybe you can do a course? Nothing heavy on learning, just something you're interested in learning, like photography or painting or yoga or something like that. They do loads of stuff like that where I live. Good way to make friends is to find someone with a common interest or two, right?
Besides that, meeting someone specifically who's trans, I'm not sure besides support groups. Maybe asking around online?