dont know if this is of any use to you anymore... but i've got the exact same thing as you.
im 16, and im in love with someone who cant make up their mind about the girl he wants. so far we've had a year long sexual relationship, and he's in love with two girls at once. however, he tells the world about his love for her, but not about his love for me, which i believe is stronger. on top of this, im under an intense amount of pressure from life in general. school is so difficult. im applying to colleges in less than a year and i need to pull up my grades. i am in several theatre productions and come home at 9 pm every night, leaving no time to do the things i need to. and, every evening i fight with my parents, leaving me hysterical and sobbing
cutting is a huge relief to me. the moment i feel the pain i feel so satisfied and happy, and then all the pain goes away. i love it.
however, i realize that i have a problem. and whether or not you face it or not, cutting one's own skin isn't normal. i suggest you talk to someone about it. just one or two people you can really trust (the best would be if they had experience with it)
i haven't cut in one month, and frequently feel like giving in. but so far life has been improving a little bit.
good luck