unstable relationships

o i'm nearly 17 and every relationship i have been in so far has ended up with my indecisiveness and extreme mood swings pushing the guy away either due to him being scared of the death threats or rage and anger after telling them how i adore and idolize them

and now i have landed myself in trouble as i told a guy i like him despite knowing i wasnt fully sure as i started liking him only a few weeks ago after knowing him for years and now he is really into me and i am distancing myself and being really cold towards him in person but wont stop talking on text and then he is best friends with the guy who broke my heart who i still like

he pretty much made me believe i could trust him and once i told him how i felt and laid all my trust in him he got with a friend of mine and still continues to know what to say to get to me and i hate him so so so much he really angers me so so much and yet i still like him and just dont know what to do anymore

i fall in and out of liking someone way too quickly and its not fair on the guy as im not ready for a stable relationship due to borderline personality

then there is another guy im really into and have liked for months now as we are really good friends and we do flirt a lot but again that could be me interpreting it that way and then a friend likes him a bit but i know i will act impulsively and get with him one night as i nearly did last night when i was drunk but i really do like him and it will help me get over this guy who broke my heart hopefully

every week its like theres someone else but then i change my mind and the one person i shouldn't want i do and its all too much

If possible, try to focus on securing your future. Ignore the guy impulses. Avoid sex, use protection. Everything that seems so important now, you won't even remember when your 23.