um.. idk if I should be saying this on here sorry

so my mom always gave me hugs and kisses since I was a little kid and I had absolutely nothing against her kissing me on the lips but now that I'm a teen, I feel really uncomfortable. I've tried telling her to not do it multiple times but then she gets mad at me and makes me feel guilty. am I overreacting?

sorry I know I shoudn't be posting this on here but