Chameleon Personality...?

Do any of you guys feel like your personality changes depending on who you’re with? My sister is nothing like me, she has such a sweet personality and really keeps herself steady when she is around all kinds of people but me, I try to blend in. I know who I am and how I usually am but when I’m with other people I feel like I lose myself in who they are...? Especially if they have an incredibly strong personality. Does that make sense? And some days, it can either make me feel good but 7/10x it stresses me out when I lay down in bed and think about my odd behavior because it’s not how I usually am.

Anyone else do this? How do you fix it or deal?