HOW TO START?

Hi.I would just like to ask a legal advice with regards to my situation. I've been married for almost 13 years now. we have 3 children. Ever since out marriage started, madami na kaming mga bagay na hindi napagkakasunduan. Dahil ayoko ng away, i always gave way to her. I always done what she wants me to do. Siya lagi ang nasusunod. and sadly to say, nanakit po ang wife ko. She spanked me with a spoon that why my front tooth was cracked in half. Kinakalmot at kinkagat niya po ako. my children are the witnesses for all her violence treat against me. But i'm controlling myself not to hit her back. And then last year, I fell in love with a girl. She have done good things that i didn't experience with my wife. At nalaman iyon ng wife ako. bugbugan na naman ang scenario. she stabbed me with our car keys not once, but twice. They made an arrangement at the barangay, at akala ko tapus na yun. Mahal ko talaga ang girl and I don't want to loose her. I'm not happy anymore with my wife and too tired understanding her over and over again. What shall i do? I know she have the right to file a legal case against me and my girl. Can i also make a counter file against her? what will happen to my girl? And one more thing, ginugulo ng wife ko ang parents ni girl. pede din ba mag file yung girl against my wife? Sana po matulungan ninyo ako. sa totoo lang, pagod na pagod na ang katawan ko sa asawa ako. at ayoko ng patagalin pa.. Mahal ko mga anak ko, pero kung sa kanya lang, walang wala na talaga.. Thanks in Advance for the advice..

what was this arrangement at the bgy?