Depends on the stickers! You bought an RG though, so you should have an easier set to work with. I haven't built the RG QanT, but I'm gonna assume it has a few chrome stickers (probably for the eyes and not much else) and a boatload of sticky, transparent ones with tons of warning labels and designations (this is the sheet with green backing).
The sticky ones are easy to work with and entirely optional as they only add to the design to create a distinctive look. The adhesive on the back of them allows you to pick them up easily with tweezers and reposition them until you're satisfied. and the risk of damaging them is pretty low. If your sheet's damaged, no real damage done. Just apply what you want using the guide on the back of the booklet and be done.
The chrome ones are trickier. Thankfully there are few on RGs, but these stickers are delicate to handle without damaging the surface - When they're bent too far, permanent creases and marks are left on the surface. You generally need to get these right the first time you put them on. I used to dread Gundam eyes as a novice builder too because if you don't put the sticker on just right, the face becomes assymetrical and looks all funky and then I'd have to carefully peel off the sticker to try again (and pray I don't lose it because the adhesive ain't the greatest).
Dry transfers are better and waterslides ideal but you've gotta special order that shit on most Bandai kits.