Can't stop testing!!

I have to admit that I am obsessed with testing and buying hpt. I will say I test may be once a week knowing that I will get a BFN, but hoping to get a BFP.  I need help to stop this because it is driving me insane.  I am hoping this is finally my month, My period is supposed to start on 3/13. Please any suggestions if how to stop testing and buying HPTs? Anyone going thru this anxiety?