Hello there I do all the time, mostly blocking but a little variety. ;) I'm 41 now but when I was your age I felt the same. I felt like I was going to stutter my entire life but then my 20s came around. Between some intense speech therapy at age 21 and maybe just getting older, the embarrassment goes away, confidence will go up, and you'll probably be more fluent, too. I think with social anxiety and everything else going on in our teens, speech is much worse at those times. Stick it out just a few more years. :)