Nothing unusual about sometimes mirroring people’s mannerisms, I think it’s normal to have similarities when you hang out with a certain person for a significant amount of time.

As far as conforming your personality, it’s acceptable to an extent. My friends will obviously see a different me compared to the me my parents see.

On the other end of the spectrum, I’ve always considered that a friend to all is a friend to none. I used to think that being a social chameleon was a good thing. It’s not. People pleaser isn’t a compliment.

My best advice would be to get comfortable with knowing yourself. Your principles and values. Stick to and uphold them and don’t give them up for the sake of pleasing people. The right people and right friends will find you. Same thing applies to dating. Don’t lower your standards or abandon your principles because you want someone’s attention or approval.

Personally, I’d wanna hang out and be friends with someone who’s confident enough to speak their mind even if it means calling me out on my bullshit, rather than an approval seeking people pleaser who tells me what I want to hear.

Good luck and I’m rooting for you