EX'S

EX'S right who's had an ex that turns into a stalker and how the hell do i get rid of her its starting to do my head in

You could try to get someone else to hit on her. That might get her of your back.

done that didnt work ¬_¬ i found out that after 15 hours of breaking up with me she was with someone else

How about being brutally honest? Sometimes you find the ex stalks you because the breakup was too kind and they think there is something fixable.
But if she was with someone else 15 hours of breaking up its a little confusing as to why shes stalking you :/

I never had that before but I recommend facing the issue head one by talking to her about the situation.

If talking to her about it doesn't produce results, then you'll have to outright ignore her. It may seem childish, but in reality, she's the one being childish for not just talking it out and taking your words seriously.

If there's any online stalking going on, then the obvious thing is to block her everywhere. Don't even explain why, if you're that annoyed by her, she should get the picture.

As far as physical stalking goes, you probably can't always avoid her. But you don't have to acknowledge her presence. She might be persistent or rude, but as long as you don't respond to her at all, everything that happens is her fault because you aren't instigating anything.

Stalking can be very serious and needs to be treated accordingly. I had to get a restraining order before my stalker would leave me alone.