the battery in the car turns over and makes a clicking noise but the engine will not fire up. Somehow i believe its not the battery but maybe im wrong so if anyone could post any advice on what to do, thatd be great... thanks
I'm not sure from your message whether the engine is turning over or not. If it's not turning over, I would begin by using booster cables to see if the engine will turn over properly - check the manual for specifics on where to hook up the cables. The battery is under the box, where the spare should be, so is not readily accessible.
A clicking sound without the engine turning over could indicate the battery has enough current to kick in the starter solenoid, but not enough to turn the starter. I had an electrical drain problem with my Duramax pickup - turned out to be defective contacts in the ignition switch allowing some systems to continue draining. If everything is operating properly, the electrical system should shut itself down after a specific period (unless the SSR is done differently from several other GM vehicles.
If you do get it started with cables, make sure to put the battery through a full charging cycle - unless you go cross country, running it will not properly recharge the battery.
If the engine is turning over but not firing, it's getting a little more complex - possibly a sensor out of commission making your computer unhappy, or a problem with fuel delivery - unfortunately probably means a visit to your friendly GM dealer on a towhook. I would strongly recommend trying to get a deck truck, rather than risk damage from a towtruck.