Is it normal i cut everybody off and i feel lonely?

the more i want to be myself the more the people around me seem toxic. when i just stayed the way that made them feel comfortable they walked all over me and i felt bad whenever i was alone. i accept them for who they are but i feel as if i always have to pretend around them. not only that, they're inconsiderate and moody too. and this causes me to be on an emotional rollercoaster around them. this is not once or twice a week its everyday. this is with family and a friend. i'm scared to involve myself with new ppl bc they could be the same or worst. i made good friends online but they live in other states, and who knows what it'll be like in person.