Error 99 all the time , 1 yr old ...started it about 2 months after i bought it

Hum, error 99 eh? Canon's catch all error code, there is a ton of little entities that can cause error 99 from using third party lenses, batteries and even grips but, it all comes back to an electric contact fault. By using a good clean new pencil one with the red rubber eraser most of the error 99 problems can be quickly for lack of words erased. The most obvious problem area if you camera is not fitted with a battery grip is the lens contacts between it and the body of the camera.
Remove the lens, put the body cap on the camera when you are doing this part and while holding the lens as vertical as possible with the contacts down lightly rub the cold contacts. You can use a lens tissue and blow bulb/puffer to remove loose rubber. While you are at it clean all your lenses and put the rear lens cap on while not in use.
Okay the body, it's not as easy but doable, remove the body cap keeping the lens mount and open cavity pointing downward. Lightly rub the body contacts well but also gently, clean any rubber away from the contacts using a lens tissue. Don't use the bulb/puffer as it will blow eraser dust into the camera and possibly cause flecks of dirt to adhere to the sensor.
Once clean reinstall your lens and go do some photography.
Other things that cause this annoying error 99 are grip contacts, battery and recently I got into an error problem and my fix was updating to new camera firmware. That problem took me while on an assignment and would have been embarrassing except my back up was a "Rebel". Winding down the shoot the Rebel started with this error 99. Once back to the studio I did the updates and cleaned every lens I had. Cheers Happy New Year have fun make lots of pictures.