I’m 32 and I’ve always had difficulty approaching women because of my stutter, also because I have no idea how to flirt and make small talk haha. Saying you’re young and things will change in the future won’t help but if you can get the confidence to have small conversations with people you don’t know then maybe you might find it easier to approachable girl without feeling awkward and walking away. At 18 I was in your position and I didn’t have Reddit and this community to turn to for help. Plenty of people have difficulties with talking to the opposite sex and they don’t have stutters like we do! Your classmates don’t seem very mature, but at 18 what do you expect. Hopefully some of what I said is useful, I tend to ramble.