I'm a hs dropout and am stuck in the limbo between popsci rubbish and formulas the have greek letters in them. Be that as it may, ive been bothered by a thought experiment lately.

If you were to create a stable traversable wormhole with one mouth here on earth, and the other mouth on a spacecraft traveling at 99%c for a year, would you theoretically be able to use it as a kind of time machine?
Sorry if any of this sounds retarded, 116 iq here.