Don't do it man...I've been where you're at, where it feels like the notion of going on is an insurmountable task requiring every bit of energy, and at times even more than you have.
It's common, and understandable, that people urge someone in your position to think about the 'good things in life' - which might almost appear counterproductive when you then and there probably feel like no such things exists...this is where you yourself, as a unique individual, come in to play. You have to find it, find whatever reason for living you might want, something that keeps you going whether it's some monumental or extremely small in the eyes of others.
The challenge is finding that, and when you feel you can't then life feels even more bleak - but ending it will end it forever and rob you of the chance of happiness or even slightest enjoyment of life.
Small steps, life isn't a race, take your time. Try your best to find something to latch on to and if you can't find it immediately then that's fine. You might hurt, be in pain, but don't give up hope that it -can- be better. It is not impossible, just so fucking hard sometimes but when you get out of that hole, even if temporarily, you get a glimpse at what makes life worth living and you'll clutch to it like you've never have before.