How to escape a echo-chamber ?

I'm sick of being with my college fellows, the crowd is bad, feels like im stuck in a echo-chamber, everyday is same, full of cheap-talk and shi. Sometimes I feel like its affecting me, my way of interacting with others, perceiving things. I believe that I myself has been degraded as compared to how I was before the college fiasco. Although I was a introverted person as far as I can remember, but now its in a completely different sump, all this stuff is now affecting my mental balance and career development.

I want to stop this but I don't know how. I believe interacting with new people or atleast having some quality alone time (I reside in a hostel) could help me, but can't figure out. Please comment your suggestions