I would do the same, except instead of gold I would pack as much Fentanyl as possible. (Not like the cops will find you after you time hop anyway).
I could then, heavily dilute the Fentanyl and sell it and earn way more gold. You could also poison your enemies with pure Fentanyl and no one would understand what sort of poison it is.
With all that money you could probably buy a small castle, a loyal guard, hire the smartest people around and have them start creating weapons, medicines and mechanization from the 21st century before you even die.
The other reason Fentanyl is superior than gold is that if people see gold they will just steal it. If they see bricks of Fentanyl, they probably won't steal it. They might try and see what it is... and likely kill themselves in the process... which would likely dissuade any other thieves associated with them.