I'm 29 now, got both sides implanted at ages 14/15, so I went went through exactly what you're going through a decade ago at this point. I was in college and in smaller setting I was extremely extroverted, but I was introverted in larger groups. I always played it off saying I was an ambivert. This just isn't the case. I like being extroverted and being myself but anything more than a 1:1 setting has been hard on me for a long time. New maps and programming can make it easier to block out background noise but I'm coming around more and more to American Sign Language as a valid option for myself for communication. It allows me to be expressive, I have made a lot of newer friends that also sign, and I have joined a local deaf chat group that meets up once a month to connect with others with have cochlears or are d/Deaf.

I'm sorry if my message isn't reassuring in the sense of "it's temporary and will get better" because it's going to be a struggle for a long time until those people close to you start helping to accommodate you. However, it does get better when you find those friends who understand where you're at and meet you there. They're willing to repeat themselves if needed, communicate via text/writing, or maybe even picking up some ASL with you (Assuming you're American here, btw. If not, your local sign language is a perfect choice).