sick of it

I'm not trying to complain here... I am very thankful for my mom and I would say that we have a okay relationship but she has just been doing the most to me and maybe it's just me?????

I am 19 and go to college and still live at home (trying to save $$ to move out). I did live on my college campus the beginning of the semester just to experience "THEEE COLLEGE LIFE". So I kinda recently moved back in and idk it's just been hella awkward with my mom. I feel like she still treats me like a child and she doesn't know I am grown and need my privacy. 

Me and my sister do share a room but she is 13 going to be 14 and we keep the door close most of the time because we just do our own thing and brothers. I find it so annoying when my mom comes to try and tell us (me n my sister) something bc she will say whatever she has to say (always asking us to do sm) then leave the door wide open. Another thing.. I like to watch my lil show before bed yk (impractical jokers loll) and my volume will LITERALLY BE ON LOW. I have asked my sister many times if the sound bothered her and she says no. Whenever my mom comes to say goodnight she ALWAYS has to remind me to turn down my laptop and keep it away from my face (it is in front of me at a good distance I am just laying down usually) and to respect my sister bc she is sleeping AND I GET IT AND I HAVE ASKED HER IN FRONT OF MY MOM and my lil sister says no EVERYTIME. like we have this same conversation almost twice a week. 

ig you can say im sick of seeming like I don't know the rules or being talked down on?? 

she also will just throw all of her personal problems on me which before I thought was okay and normal to do bc she's my mom and she is a person too but im realizing how it has effected me mentally as well.

AND I GET IT I am living under her roof and I have not expressed to her that I don't appreciate how she has been acting towards me just bc she will instantly take it to heart and I'm not trying to hurt her feelings it is just irritating and I can tell I am reaching my breaking point soon