Advice help!

Okay so I have some issues that I was trying to figure out with my mom and my brother.. Seeing how they put me down on a daily basis because I lost my kid to her dad her dad has another kid with someone else who think they can control everything in my life .. So this morning I was talking to my ma about getting my daughter back she rudely starts mother ducking me about my kid.. So I go off and start telling her why I got to put food on her table when she kick me out because of my brother.. My ma always sided with my brother ,then money gets involved so yeah I started yell for them to shut up and as I was speaking ..my brother runs up punched me in my head ,my head hit the wall an I fell so I get back up an he came after me swinging at me to hit me,, so I grabbed his finger grabing it an bending it back wards hopefully nothing broke. Punching me in my face an kicking me while I was down.. Kicked me in my ribs. What should I do?