Marijuana proving to be a challenge.

ok, im going to post all my problems, mental or not, im sure they relate.

Im 19, i first tried Marijuana at 12, and became a 5 times a week weed smoker by 14, and a daily smoker from 17 until now.

Ever since grade 11, (16 years old) i stopped caring about school, i still took part in sports teams and what not, but i just didnt care about my marks. By the end of grade 12 i would skip class nearly every day and smoke weed, and my marks suffered. I graduated on time, but didnt really take initiative to send myself to university so i took a 5th year, after a few months i dropped out, changed schools, dropped out again, and applied to university.

Since coming to university, i have spent all my money, failed half of my courses, i have not paid my student fees, i have rent to pay, need to buy food, with no money. and i dont have any plans to take care of myself, i dont ever take the initiative, i even think about the changes i need to make, but i never make them.

so now here i am. University student, in a program i am uninspired by, i skip class every single day, i stay up late playing video games, sleep in until the afternoon, eat very little since i have little money, and honestly none right now.

i have attempted to quit smoking weed,hoping this would help my motivation to change, but every time its around me i accept it, and smoke it, and i find myself in the same slump and im lost. I just keep ignoring my problems, i dont know how to tackle them, i dont know how to motivate myself to fix my problems.

saying good bye to my dad on reading week broke my heart, i dont want to be a disappointment, and thats all ive been. but maybe its thoughts like those that keep me feeling like this. I dont know where to go from here.. help!?