Help me please :( ..............?

for about 3 months all ive fellt is anger and saddness, i find my self yelling at family people that have been my friends for all my life over the smallest things. i h8t scool it is probibly the worst thing in my life so i act out wich gets me in strife at home and my dads a basterd ( yell, thretens, put downs, and mentle and phisicle attacks) my life has just become one endless sycle of pain and i dont know what to do. help me please :(