I want to ruin my ex gf life because she cheated on me and things she has a new bf I'm 18

>>33283311 (OP)
Let it go and move on. Holding onto the hate isn't good for you.

>>33283311 (OP)
Success is the greatest revenge and indifference is stronger than hate.

>>33283311 (OP)
You ever seen those older adults who live like shit, OP? You know the kind. They are angry, miserable, they are loud and obnoxious, they go home to drink and get drunk, they fight with their own children and husband. Trailer trash, unclassy, total fuck-ups. You know them when you see them in public. Just all around bad humans who you can see their dysfunction take a toll on the way they speak, dress, the way they look. Pot-bellied, wrinkled and screwed up faces, bad attitude.

Thats your ex-girlfriend in 20 years time. Thats where those types of people are headed in life. Dont bother with vengeance. God avenges you anyway. He does it by letting people like that continue to dig their own graves.

>>33283368
Just to piggyback off of this point, OP, this is where you will also end up if you don't learn to let go.