AITA for not having friends- complaining to my boyfriend about not having friends, but not wanting to be friends with his best friends’s girlfriends

OK, I genuinely do not have friends. I know a lot of people say that but I don’t the only people I’ve hung out with since I’ve graduated from high school are my current boyfriend of two years and my mom and sister occasionally but mostly I work a lot so I’m just at work and I work with everybody that I wanna say about over 45 and other jobs they were about 16 so summer are too old to really hang out with it be weird and some of them are too young to wear it would be weird if I were to hang out with them. So I do complain to my boyfriend a lot not a lot, but sometimes about not having any friends and he always tells me that I should try reaching out to his buddies girlfriends cause they’re all nice and we’ve all hung out on like double and triple dates before but I’ve never hung out with them one on one and the thing is my boyfriend is 10 months younger than me so he was actually in the great blow me so all his buddies are in the great blow and all their girlfriends are in the group below them so they’re about 2 1/2 almost 3 years younger than Me. I’m 21 and most of them are still 18. It’s not that big of a gap we’re in very different places in life and just in general. I’m not like the other girlfriends they’re all in college. They’re working boutiques. I skipped college went straight into Work, a little bit rougher like cooking for a barbecue restaurant or addressing for local 911 so I work 9 to 5 while they go half a day for college maybe two or three hours at a boutique and have the rest of their days to do anything I’ve tried reaching out a bit but we almost seem to different to just hangout anyway so my bf thinks I should stop complaining and suck it up or put myself out there more but I don’t know how it’s been so long since I’ve had a friend my age with similar interests enough to be friends so am I being an a hole I’m an and had tried