i have an 18 yr old son who is currently having big meltdowns every evening .he gets aggressive ocasionally and has hurt me physically once.this has worsened recently. im not sure ifits hormones or not but he never used to get like this .its only since we moved after my parents died. last year. it could be the changes . he gets so upset and angry. he keeps wanting to sell things and spend money usually online. i know its all cos ofhis autism but how do istop his behaviuors? i would appreciate any advice. ive no family or friends to help me.