I was convicted of criminal harassment and put on probation for a year and a half, I had four months to go, when I was outside a night club wit a girl, and the female I criminaly harassed or one of her friends, drove by ina cab and yelled out mt name and the word "stalker", I was so embarrassed I went home. 3 days later I called her some vulger names on Facebook, a cop called me and asked if it was me, I lied and said no. The next day I felt so horrible, about what I did, I went to the cop station and confessed.. I see a counclier once a month for my anger, I deactivated my Facebook account, and got rid of my computer, and now I've started anger management meetings. My question is, what will happen to me now?

Confessed, HUH ? Ok, guess it makes your conscience feels better, but legally the stupidest thing you can do, Never confess without talking to an attorney.

But with that said, since you were charged with the new crime, what happened when you told your PO about it, obviously you are not violated and locked up yet,
Is there a hearing planned for violation of probation ?

It is hard to say, of course you could be made to serve all of the year and half in jail, or they may hold you in jail for a few days to teach you a lesson, or merely put you on more probation on the new charges. It is just up to the jduge.