Stuttering is crippling me. It's frustrating and random

Stuttering is crippling me. It's frustrating and random Hi, this is my first post here. I'm a 15yr old Indian male. I've been stuttering since I was 10. School just started, and we had to introduce ourselves to the class. I was pretty confident about what I was going to say, rehearsed it a couple of times in my head, determined to not stammer. Went onto the dias and completely lost it. Sentences wouldn't flow properly and I stammered some words I can pronounce very easily in a face to face conversation, I couldn't make eye contact with anybody like you should and kept looking up at the A/C unit, disastrous..... Stuttering is just about ruining my life, I have things going for me but having a proper conversation is not one of them. I have a moderate stutter but communication skills are very important and I'm afraid I'll never get anywhere if people don't have the patience to hear me out on a topic. They lose patience if I'm stuck on a word or sentence and sometimes even burst out laughing. I'm not very depressed, but it has me worried about the future. Elocution exams, debates, etc are organised all year round (on various topics, some of which I'd LOVE to express my views about) and I've never entered them because I WILL stutter. I have tried speaking slowly, a little loudly etc, but none of that seems to work. It's a mortal effort to say "butter" or "rubber". I stutter more while talking to specific people for absolutely no reason, they're my friends/family and I'm not in the least intimidated or dominated by them :/ I apologize if you think I'm looking for attention/pity..... I really want to fix this, this "curse". Please, suggestions, resources, links, are all welcome. Thanks.