Recently out of a long term het relationship but want to explore my attraction to men, where do I start?

Im recently single, was with a girl for over 5 years and have only ever been with girls. I’m sick of denying that I’m attracted to men and don’t want to go my whole life never exploring my desires so before I get myself into another unhappy het relationship I want to explore with men! I’m not sure if I’m bi or gay, but I guess I’ll find out shortly.

I’m just having some trouble as to where I start? Like there is grindr and stuff but I’m a bit shy and scared to jump straight into sex, especially the things I’d want to explore which are, errr… on the kinkier side, I’m kind of scared to throw myself into that life. My dream would be to find a kind of guide/mentor but obviously that’s probably not going to happen haha! So how do I get into things this old? Where do I start? Also is it seen as unattractive, or a red flag, that I’ve never done stuff with a guy and was previously repressing stuff?

EDIT: should add, I’d be interested in bottoming only