Help im running out of options....?

I dont know what to do!!!! My brother is driving crazy! i have never had anger issues until he started getting on my lasting ******* nerve! He is older and much fatter and stronger than me..so im afraid, he is verry impulsive and acts without though, i clean up after him, do his work and deal with his crap and all the **** all the time, i cant stand up becuase im sooo scared, he steals my conditioner all the time and for the 2 time taken the whole botrtel and hasent told me! i know its him! i found my last bottle spread acroos the batroom mirror, hes so ******* annoying! tyhe list goes on!! and on! i want my stuff back and my happyness! we cant afford $10 for my conditiner, its the only knid that works for my hair, so im dnoe with it! i cant take it! i want to be happy! he avoids the situation of him getting on my nerves, he out a freakin hole un our bathroom the size of like a puppy golden retriver! and antoher in out hall way, i cant take it, i feels sick! i want it to all go away!!!