Anxiety?

So i'm like 99.9% sure i have anxiety cause like i get anxious and worried like 24/7 and it's literally about nothing at all but i have random panic attacks like whenever and wherever and when i get scared it's like BAM another panic attack but it's getting really hard and i've searched online which is like the worst thing to do but all the "symptoms" are like a perfect match to mine. i haven't told anyone which is really stupid but like i get anxiety about anxiety and i feel like this is the only place i can let everything go without anyone judging me. But my friend thinks she has it but she obviously doesn't because she has a chest infection thing and the doctor said that it could be anxiety but they don't know and she's the kind of person that thinks "well, if a doctor said i have it then i definitely have it" so now she's like not coming to school because of her 'anxiety' that she doesn't even have and then people joke about anxiety but then i'm like on the verge of tears because it's so bloody hard for me to open up and i feel like everyone at school will be like "oh she's obviously doing it for attention" because i go to an all girls school and everyone's judgy and i'm too fixated and worried about what people think. Oh and i'm 14 so people will think it's just schoolwork but it's not like i'm so scared i'll get raped or a clown will attack me or even there will be a freak storm that pops up out of no where and kills everyone. And i've got insomnia from it which is not fun at all! And i just ranted and rambled on and on but i have to get it off my chest and this is the only place i feel safe-ish.