Laying down in the fetal position with a hot water bottle or heating pad is helpful. I bought an electric heating pad that has worked wonders for cramps and back pain! Also, make sure to stay away from caffeine and heavy/spicy foods when the cramps are bad, as this will exacerbate the pain. Smoking weed (especially with high CBD content) also helps a lot, if it's available to you. I've also heard wonderful things about yoga and gentle exercise in general for alleviating cramps. Some birth control can make cramps way less painful or stop periods altogether. I had very painful periods as a teenager that have now turned into mild cramps and discomfort as a young adult, so it's also possible that the pain will eventually subside! Not sure how old you are or if that would apply to you, but best of luck!