hey bikers! i just wanted to know if it time for my bike to true the wheel?

every rotation my brakes pads hits the rim at a certain point. and i rotate my rip and touch the rim i can feel there is a dent. is it time to true this wheel?

That depends on what kind of imperfection you have. If there is a gentle "wave" that doesn't have a sharp beginning and end, you can learn to bring it back to true by tightening and loosening pairs of spokes. (If one spoke at the peak of the "wave" is noticeably looser than its neighbours, you just tighten that one spoke without loosening the others.) But if there is a dent or a blip in the rim that you can feel with your finger, you can't true it. It is sometimes possible to fix dents and blips with a hammer or a crescent wrench or (horrors!) Vice-grips, but you need to know what you are doing. Not recommended as the first task to tackle as you learn to repair wheels.

this is the time

+1 This is the time. +1 Truing does not repair damage (a dent).

so i will need to deal with it, then if it gets worse buy new rims?

Not really...it depends of the grade of damage, you can live with tiny dents and sometimes u cant even notice them while riding. I have gotten repaired rims that i thought where toasted for example, but this was somewhere else, not in the states. If you have some lateral truing to do, that's pretty easy just think and you will find out that is pretty logic, if you have some hops or vertical truing to do and if it not that bad i would leave it as it is, you wont notice it for sure, now if you want to learn just google how to true a wheel and use the brake pads for it, and done with it.

Another thing, that you have a brand new rim doesn't mean it is straight, many times the issue building wheels is that the wheel will be as good as the rim is, but now rims come pretty straight.

Good luck