Whenever I wanted something, I used to be very stuborn and head on to it. I would never stop before getting there. This was true with everything, games, relationships, classes...it was and is my personality.
Once, a girl to whom i was atracted gave me the following advice:
"You know, there is a time for everything, even to quit and let go"
I took this advice and understood I had to change something..at least be able to adapt and change tactics.
Some weeks after the same girl told me:
"I see you are a nice boy and took my advice"
My answer to her will tell you what I changed and how i adapted:
"Yes, I understood your advice and now I see there´s a time when one must live to fight another day"
In the end we got together 1 year and a half later..too bad I found how cold she could really be even with someone she said she loved.
But I took the advice on my life, even in college where I stopped my graduation for a full year. I was not very sure of it when I stopped but one year latter I came back in full force and with a different much better aproach.
So if something´s not working, maybe it´s not the right time or you´re not taking the right aproach. Take your time, think, look several times at it...if you still think you want it, come back later fully regenerated.
with. girls always know best 
