My friend won’t stop copying me, what do I do?!

I’m coming on here because I don’t know who else to ask when she’s my only closest friend.

I met this friend through work a couple years ago, she instantly kinda clanged onto me? like wanted to become my friend, got my socials, had similar friends for a while until I had a fallout with those friends, but we still stayed in touch.

Few months pass I started seeing changes in her, copying my music taste to the core, dressing a little similar to me, making new accounts to the amount I have, made her instagram and other socials have the same theme to mine, and then finally the hair, got bangs just like I do, styled and cut it the same, and even made her pinned straight hair wavy like mine, I also forgot to mention she is a couple years younger than me too, I’ve lived more in the since of going out and actually have had more experiences, she’s always been indoor and lonely so at the same time I feel so bad like what if shes just really looking up to me. She even makes lip syncing videos the exact same way I do, and has copied my mannerisms, started doing her nails the way I do, and even started saying “oh my we look like sisters” it just got too extreme and it’s really making me uncomfortable.

Lastly I already brought it up to her once, told her how I felt about it, I didn’t argue with her nor did she, she actually was really nice about it, she’s very understanding and started apologizing a lot. But that talk was a few months ago now, it’s almost as it hasn’t changed, or maybe now that it’s been a bit she continues? I’m not sure, it’s hard because i actually really like her as a friend, she’s good to me in every other aspect and she’s a good person atleast I’d like to think she is, she gets scared or worried when she thinks there is a slight inconvenience between us, but i just can’t keep acting like I’m okay with all the copying, it’s okay to get inspired, I’m not original either it’s just so hard to unsee it, not to mention even my friends will point it out before I notice it myself.

What do I do???