so messed up

ok so i have a girlfriend now but her dad would kill me because of my brother's record and he's too narrow minded to realise i make his daughter happy so she says we should end it and we've been arguing for 3 weeks for like 3 hours a day... i'm trying to keep us together and she says she wants to too but keep pulling back... now i'm not stupid and can realise it's a losing battle

so there's 2 other girls complete opposites and causing a giant problem one girl amanda is into drugs a bit and has liked me since last year we started talking alot this semester since our classes our the same. so i started liking her a fair amount but i don't want to get involved with her since her and her friends all do drugs and i finished with them last year. the other sarah has like sunshine radianting from her you can't be sad around her she is fairly popular but not in the "bitch class" i know her best friend and we have 3 classes together so we talk she asked if i knew sarah then introduced me to her after that then we talked a bit sorta lost touch end of 1st semester (i went to b.c.) now she shows interest in me but i don't know if its just something to do but everyday she comes up behind me at my locker and we talk etc. but i only see her inbetween my lunch and last period so theres not much chance to get to know each other or whatever. and i'm not even sure if shes into me or not.

now assuming sam (my current g/f) and i are completely over which is fairly obvious, i don't know which to go for... i'm crazy busy with soccer and rowing and work and badminton and basketball so i barely have time for a relationship but i find myself distracted from sports thinking about either one of them.

so any advice/ what you would do?

Well, I won't answer what I would do, because personally I wouldn't give up on my current -or have any thoughts of moving on - until I knew it Was completely over. You seem to be moving on quite fast, which shows me either that you only want to date another girl to distract you from losing your current... Or perhaps you really don't love your current gf, and it doesn't hurt you to lose her.
I don't mean to make you sound bad, it's just the two possibilities I see. But either way, I'd say just make friends with both of your 'crushes'. Find out who they are, how your compatible with you. After finding out lots about these two girls, you can decide if you're still stuck with work and sports, or if you really do want to commit yourself to a relationship; and you can choose who you get along with best, or who brings out the best in you... Or perhaps the one you've grown to love overtime.
Becoming friends first, just sort of gets you set up for things. It gives you time for whatever you need: getting over ur current, or deciding between a relationship and other things. Time is valuable, don't waste it all on one potential mistake, spend every minute looking closer at everything. Smell the roses, or in this case, really 'meet' the girls- and their personalities.
As for the distraction they give you from work, that one's just about obsessiveness :P. There's not much you can do about that, except let it be. (Trust me, I too have a bad case of obsession)

i do like (not love) my girlfriend and i've spent hours trying to fix our problems but theres so many and she keeps me outside and won't tell me how she feels

drugs. bad. and u dont want to get re-pulled into that. take ur gut feeling.

Alexis, I do partially agree with you on that. If he had to choose now, then drugs are bad and getting pulled into any situation like that would only make more things 'so messed up'. However, I believe that if he were to make close friends first, he might see that this girl with the drugs, is a wonderful person whom he could fall in love with. And being friends with her, and caring for her, maybe it's her that could be pulled out of the drugs, by him - rather than him being pulled in by her. I've seen things like that happen before, it's quite possible to happen again - and if it does, then it could make two people very happy.
I still stick with the friends idea. I just don't see how jumping into anything too quickly(especially after a break up, and with so many doubts) would work very well...
Best of luck though, it is your choice and I won't judge you for anything.