My Keynote on my MacBook Pro Won't Open Very Well...?

[Bob]

I have already asked this question and please if you KNOW THE ANSWER PLEASE BE MORE SPECIFIC!!! Step by Step would be great.
I have been assigned to do an assignment on Keynote for school and then when I start working on the Keynote (it can type and add pages) ,but when I start to change colors or even fonts of the Keynote the whole Keynote will just quit for no reason. Even if I try to save the Keynote it also quits by its self. So, I am left with no work again and I can't save it at all so even if I tried to back my work up IT WILL NOT SAVE WITHOUT QUITTING AND LOOSING ALL THE WORK I'VE DONE!!
This project is due Friday at Midnight!!
So PLEASE SOMEONE HELP ME STEP BY STEP!!

Thank You Very Very Very Much
I have...
~ Restarted more than 2 times
~ Shut Down the MacBook Pro more than 2 times
~ Done a Software Update