we do need a bit of information, certain curses are harder to get off than others. very simple thing you could try is have a sea salt bath. sit in the tub, and visualize each time you pour the water over your body, white light is washing away black negative energy. that normally gets rid of most curses. sage smudge can get rid of negative energy as well. if you want a more magical approach, look for a reversal spell, if there is a curse, it will be sent back to the caster. a protection or luck charm afterwords wouldn't be a bad idea. as well, look into shielding while mediating, it's a little something that can keep a lot of negative energy and hexes off you.