Any dating advise for a 24-year old virgin?

I'm 24 years old, gay and a virgin. I've never had any intimate or sexual relationship with a man, ever. I've never been kissed. I've had guys tell me that I'm attractive to them, but I'm not so sure since it's difficult for me to understand whether they're attracted to me or if they're just being nice. I've had guys who showed interest in me, but I've rejected them since I was simply not interested in them. Which makes me wonder if I'm being too picky? I don't know how to approach guys that I find attractive, nor do I know how to respond to someone who I think might be showing interest. Also maybe I'm over-thinking it but I just find it hard to talk to guys in general, like I'm more likely chit chat with girls.I find it difficult in general to meet other gay people and connect with them. Where should I try looking? I live in a city. I'm thinking of going to a bar or a club of some sort, but I'm note sure at all. I simply do not understand how to start dating, if ever. I don't use Grindr or Tinder, but now I'm thinking maybe I should? But I'm not really interested in hooking up, although now I'm thinking that I should try it?