Is this normal?

𝔫𝔦𝔠𝔬𝔩𝔢⚢︎✰

By brother kind of touches me in inappropriate and weird ways. I'm only 13 and he is only 11. I don't know if this is normal, or ok because he is just young. I always cry and feel disgusting when he does something to me. I don't know if it's normal, and I just want to die sometimes because of it. I have never told anyone. I'm scared about this, especially when he gets older. I don't know what to do. Today he literally did something. I've started cutting myself. Is this normal for siblings to do? Also I know this probably isn't a big deal, at least to post it in this group, but I didn't know anywhere else to share it. Also sorry this was so long. Also I'm scared to tell my parents. It's kind of embarrassing, and I don't have a great relationship with them.

Update: I told my mom, and she said that he was "just saying that he loved me." Idk what to do now.

Also sorry about not updating, school has just been tough.