Hi all
I have a toyota camry 1991 v6 the timing belt broke off and I can't afford to pay a mechanic. Now I'm trying to fix is myself, my problem is the firing order of the cylender and the setting of the timing gear and belt.
Thanks in advance hope to hear from someone soon...

I'd recommend that you buy or borrow a Haynes Manual for your car.

Firing order has nothing to do with it. You need to know the marks on the cam sprockets, and the crank sprocket. These are the most important parts.
... then there's the R&R of all the parts to get to it. Even with a manual, this is one real tough job. I would seriously consider paying someone qualified.