Jealousy, how should I overcome it?

I am someone who gets jealous so easily. Worse still, jealous of a girl that I like and love so much. Every time when she posts msgs about her bf, I feel so upset and jealous. Every time when she answers the call from her bf, I get so jealous.

I can't help it, I want to control it, but I can't. Its a roller coaster ride for me. I feel happy when we are talking and all. I feel jealous and upset when he comes into the picture. I don't know, when she will ever love me. I am scaling up this mountain that is very steep and I keep falling and tripping onto the rocks. When will I reach the top of happiness? Or will I stumble all the way to the bottom of the mountain? Or should I just signal for help and hitch a ride out of here?

Am I making the right choice in pursing this love? Or there any other options?

1. Do I really love her? Yes, I do and for so many reasons.

2. Is there any hope? Honestly speaking, I am not sure. On a positive note, I feel there is. Because, we have gone through so much together.

Now, how should I overcome this jealousy? Its very hard not to think about it. Get myself distracted? How? Occupy myself with work? Career? Studies?

I need to strategies on this. Work out a plan. How am I going to do it? Think think think. My brain is going to explode soon!!!!