I can't stop stalking my ex's new girlfriend!!!?

[Alexis]

As somebody who has failed multiple times at several relationships, I can tell you that when somebody you really liked/were in love with starts liking somebody else, it's completely normal to be jealous (because this is jealousy.) When somebody breaks your heart it's completely normal to do insane, rash things. (I.e. stalk your ex's new gf.) Because you subconiously want to know what she has and you don't. And once you do you want to change yourself to be just like her because you secretly hope that you can get him back.
My advice is, jealousy gets you nowhere. Stalking your ex's girlfriend just helps you to hold on to the past. I'm sure that there are a million and one things about you that are amazing that this other girl will never have. Just try to remind yourself of all these things, and remind yourself that your ex and this other girl just aren't worth your time, then it'll become easier to resist the stalking. Hope this helped.