My life pretty much sucks right now.

I just started college and find myself collapsing under the weight of cost and difficulty.
My girlfriend just dumped me after we went out for 3 years.
I am overweight and I keep gaining more.
I spend my time at work and at home contemplating suicide and crying, my self esteem is at a alltime low and I smoke weed almost everyday.
I feel like I cannot get a grasp on self discipline or the motivation needed to get my life back together/on track.

Any one been through shit and have advice on anything at all?

Well if you have hit rock bottom, there is only moving forward from here. Try to make a list of the MOST important things in your life at the current time. Then when you have a list work on the first thing in your list until you achieve what you wanted, and so on and so forth, continually working on your "list" adding in goals for the future forget about the past and look to the future.

Drop the dope for a while. See how that works out. I know for me, weed only magnified the small problems I did have.

sorry to hear your struggles have hit you at such a young age.
Life could get better over time ... or worse.
It's kind of like the American Stock Market.
Up and down.
Presently down, in a big way.
and it could get worse.
But over time, historically, it will rise.
Suicide isn't a good choice, IMO.
Time flies, you will find.
So just hang in for the ride, like all of us are doing.
ride it out, is my suggestion.

Suck it up, man and move on.

stop smoking ganj you knob.

you will feel excellent tomorrow.

By not smoking weed you will fix:
The costs of going to college. You will also find it easier.
Your weight problem
Your self esteem

Take amphetamines. Lots of amphetamines.

start power lifting, its the most therapeutic thing i have found (especially to help drop the greens for the time being at least. Just work out whenever you get a craving )

Why she leave you?

Life sucks sometimes but it could be alot worse. Think if you lived in the middle east or africa...

Watching killers, terrorists and middle east wackos video makes me feel better seeing how fucked it really can be on this planet.