I dunno what your mom said, but maybe she is incapable of wise counsel...let's face it, some parents should never have been parents and then there you are, stuck with no support system..... maybe she is a total washout as a mother, has no clue, you say both your parents hate you.... maybe they are both total narcissistic twits with their own overriding problems, even mental problems, or worse yet, alcohol or drug problems, people who aren't functioning all that well, do you know? Can you know? Sometimes it is really obvious, they are hung over, have empty meaningless lives, meaningless jobs, dead ends loom everywhere in their lives..... sometimes you don't know what demons your own parents are struggling with...it looks like they hate you, feels like they hate you...maybe they are just so screwed up themselves, they just can't be present for you...much less themselves. it's hard to say, don't know you or them....
But say you are right, they just hate you....so. You got the rotten apples in the barrel of parents...so whatchya gonna do? Keep whining? You go out and find a surrogate mom or dad. TALK to another adult.... every campus has counsellors. advisors. sometimes even peer advocates. you sound like you are in the British Isles somewhere.... no support groups on your side of the sea? I mean, it is hard when I don't know the exact circumstances and if you truly do have abusive and maybe terribly mentally sick or drug addicted parents.....but if you do have that kind of parent, there are support groups for people who have to live with or cope with people in their lives who have serious problems..... YOu have get help for yourself and have to have the courage to step out of your insular little box where you are drowning, albeit justly, in self pity. You are 19 for goodness sakes, start taking your life by the horns what say??? You have to realize at some point that even though you didn't luck out with parents who would cherish and value you....then you got to try to learn how to cherish and value yourself. Who else can do it but you? I had to learn this lesson the hard way too...took me until I was in my fifties that I finally learned, yeah, sucked, sucked big time that my mother was a mentally ill person who was a vicious, violent, twisted person, who beat me senseless and locked me in a closet, kicked me physically and emotionally to the point I was dust, shadow, nothing. And then I marry a man who did all that and worse, broken bones, shattered both my eardrums from the force of blows raining down on my head, So I had to learn to mother myself. Be kinder to myself. Be good to me, pet myself and give myself kudos for every little small victory I could manage.
I think you will serve yourself well by getting counselling, getting someone who can help you overhaul your image of yourself and identity as a victim...and help you become more proactive in doing the work needed to change the misery you are in. It is all well and good to come here and want support and kindness and cyber hugs, but at some point, you actually have to start doing the hard work. I hope you find the strength and courage to get the right people involved in your life to help you turn it around.