i.e. pay $5 to go back 5 days.
The time travel is permanent and one-way.
Edit: this is a one time offer and your budget is however much liquid cash you have right now. Cards are accepted, though.
For non-Americans, feel free to convert $1 USD to your currency
It’s always tempting to say things like, “Go back to being 20 and relive young adulthood again, avoiding all the stupid mistakes I made the first time around.” But I know I would make a whole new set of different stupid mistakes the second time.
Knowing that, I would do what others have said: only go back enough days to play a winning lottery number or make some ridiculous stock options bet and become filthy rich.