Me and my mom fight alot?

so a few weeks ago my mom got rid of some of my stuff that was rly important 2 me n she new that it was but still got rid of it. and ive had a hard time getting over it. i finally got over it but now every lil thing she does ticks me off. and all im getting is grounded and given sleeping pills so that she doesnt have to deal with me. ne suggestians on nething i could try to hlp me not get so mad at her its rlly startn to piss me off being grounded all the time