How can I ask my mother for forgiveness?

Since the past several years, me and my mom fight, clash, argue and such that we tend to not talk for a couple days. Just a couple months ago (Christmas day) she saw a text on my phone of how much iI hated my parents and such and she was really furious about it and wanted to kick me out of the house. Then last week, she saw more of my text on my phone and found one that i hated my mom then she just had enough and she just wanted me out of the home and not wanted to let me stay and have another chance. Then meand my dad had a private conversation at a park and telling me that I shouldnt be saying such things about them and how much hes doing so much for us. I felt guilty about it and I honestly get carried away and talking stuff behind their back and just wanted to get it out of my chest rather than bottling up. Is there a way that i can get her to forgive me without starting another argument/fight? As of now I decided that I just dont want to talk bad about them and keeping it to myself and helping them out as much as i can. Thanks and im just having some hard time about it.