Yea man. That's obsession not love. I've had both sets of emotions.
Love is self sacrificial and actually suprisingly rational and able to be controlled. Obsession is being unable to control your emotions.
In love you can understand when something needs to be done, just not how to do it. When you're obsessed you just want what you want, and without it you feel awful.
Obsession, luckily for you, is easier to get out of. You need to tell her that while she's an amazing friend and that you enjoy being around her, you need to stop spending time with her for a while. You need to make it clear that it's not about her and that it's about you needing to just find yourself a bit, and that she's clouding that up.
Then you need to not spend time with her until you know with certainty that if she tried to kiss you, you'd be able to tell her no and actually want her not to.
Love is a beautiful thing when shared and a terrible thing when one sided. One sided love breaks hearts, ruins great minds and eats away at the spirit. But when it is shared in a way so that both parties are being self-sacrificial in their attitudes, trying to help the other always... it is truly amazing. It brightens the heart, clarifies the mind and strengthens the Spirit...
Don't give up on love just yet...