It's normal to feel like outcasted, but never drink poison just because you are thirsty -never fit in group with bad people just because you want to feel seen.
I had Social Anxiety and speech impediment, and I still managed to find my way out. People judged me at first, but slowly became chill with me. And I didn't attach myself to them, because I simply went my own way, not by other people. Trust me, confidence and self-esteem is key. If you have bad tone, speak more often, if you're reading in class, read it slow, no rush, clear and loud, if you stumble on mistaking, keep doing it, mistakes sharpen you. That's what I did.
Hangout more in group, even if you don't talk to them, you learn new topics. Find better habits, go gym, find people who already respect you the way you are.
And most importantly, ghost Imgflip, if you can, leave Internet entirely. It's no better than going out to clean your mind.