I wish i knew how to express myself so i could tell others how i feel, or so that i wouldn’t be awkward aroun?

i wish i knew how to express myself so i could tell others how i feel, or so that i wouldn’t be awkward around people..i want someone to help me, but i never know what to say and i always get tongue tied. i get nervous so i just say everything’s fine. but nothing is ok. i’m a mess and i need help but i don’t know how. I think I have social anxiety?