Am i right 2 b angry wif my parents??

My parents divorced when i was only 2 years old,i never reli thought about it but i was left wif my father,2 sisters n my brother,things got out of hand,my 46 year old father dated a 21 year old girl named Sherry n she now lives wif me..she takes all the attention away from me..my father doesn't talk 2 me now n both of us r like strangers..,my mom seems 2 hate me very much..and dislikes me in a very strong way,she tends 2 quarel wif me everytime i c her,i smtimes feel depressed..am i right 2 b angry wif my parents?