as said, without proof we can't say you're cursed, nor can you. it's just your luck in love. i was rejected by a lot of guys growing up, i never thought i was cursed, figured it wasn't meant to be and i would find the right person later. [which i did] it hurts, but patience is a virtue.
if you are convinced there's a curse, chances are, you're feeding energy into nothing that might become a curse. [it's not the power of the curse, but the power you give it that matters] first i would stop worrying about it, just laugh it off, and ignore any nagging doubt in your mind because it'll only make things worse. to be certain, a clean slate will help. recently, i was feeling the onsets of a curse/negative energy, i did a quick cleansing and shielding and i feel right as rain. get some sea salt and pour about 1/2 cup to a cup into a bathtub of warm water. sit in the tub, dunk you head in for a minute, poor the water over your body and breath deeply, feel/visualize all negative energy, all stress, all hardships being washed away by the pure water. once you feel lighter/clean, pull the plug and let the negative energy flow down the drain far away from you. then burn some purifying or protective incense and meditate, creating a shield around you to protect yourself. [should be done daily] finally make a protection charm to wear on you. [might have to re-cleanse and recast once a month depending on the charm]
as for your love life, while most frown on love spells, if you really want someone, make a honey jar, or cast some other spell that attracts love into your life, not a specific person. when you cast this spell, be sure not to have someone in mind, or you will be casting over them. blessed be.