Help..

So uhh I dont know what to do here but I am struggling to choose.. You know when your friends lead you to sin? But not intentionally? I want to change and do what can be for the good. But I have two options. 1. I stay away from them, and completely isolate. I mean whatever causes me to sin, I shall pluck out just to glorify our God right? But the second option says I should just evangelize and free them from their lukewarm state. Some of them already made bad habits and therefore hard to change. Yeah I had a lot of friends and I dont really know what I should choose.. Can I ask step by step things to do..