School :p

Ok, I've always been a 90 and above student, but ever since this year (I'm a Junior) I've been dropping, my grades have dropped to low 80's, and that's still not bad, but it's not me.
So, I guess my question is, how can I get back into the 'motivated'...

mood, like I used to have. Because if I don't do something, I'm afraid of failing, and junior year is like, your most important year... :/

One thing I know is that junior year is the worst year of an high school student. The teacher tends to teach you less and the students tends to be more lazy. My best advice to you is to make a study schedule. That way you have time for everything and if that doesn't work go for tutorials that might also help too.

stop doing drugs

wow.. yeah, if you're doing drugs- stop.. but I doubt you are. try motivating yourself by prizing yourself when you get something done. or when you do something well.
and make short term goals that you want to reach.

Hahahahah I'm am definitely nottt doing drugs.
I'm a smart kid, I just have a lot of family/friends problems going on, and it's been affecting my attitude towards school

what changed in your life that is keeping you from doing well with your studies? when you find that out, change it, make sure you allow study time. I am sure with decation and some small changes you will be right back on track, try study groups.