Question from a newbie

[Treadm89]

Hello folks, I just joined the forum in hopes of speaking with like minded individuals and I have a question. So I've never sucked cock before but its mesmerizing thinking about it. I've never been attracted physically to other men and have always been attracted to women.
I regularly watch pornography as I am in a marriage that sex has mostly stagnated and I think I may have started getting into the idea of loving cock as I discovered Futanari (girls with cocks if some of you are unaware of the terminology). I have recently purchased a dildo and been enjoying occasionally giving it a suck for a little while and I do quite enjoy it.
Sorry for the long winded intro I'll cut to the chase. There is a ABS relatively close to where I live and it seems confirmed that they do in fact have gloryholes in their booths. I really want to try it and have been fantasizing constantly about it and it makes the precum just drain from me all day.
I have one problem however, self esteem. I am a relatively short man and overweight. I know at a gloryhole your just on your knees working a cock and it sounds delightful but I'm concerned from all the threads on here about "hot guys" and stuff that I am worries men might see me go into a booth and flat out avoid it because I'm not an ideal body shape for them despite the idea that it's a hole with a mouth on the other end.
Is this something I should be worried about or am I just overthinking things and people will me more than happy to let me make them feel good? Also any tips going into it as my first time? I've tasted and enjoy my own cum already so I'm not worried about not liking the taste and I understand it's just a cock through a hole so I'm not worried about the whole (there's a guy on the other side thing) I can just pretend its some hot futa! 😆