So travelling to the future would also cause a paradox just like how travelling to the past would cause a paradox because it would create a time period in which you were not there that would affect that time period and by the time you approach your destination in the future, it would be a different future than what it was supposed to be if you did not travel to the future. Also keep in mind that any time in the future is also the past of the future. So time travelling would become really messy, because the past affects the present and the future and the future affects the past and the present because the present is the past and the past is the future from some other time in the past.
So it doesn’t matter whether it’s time travel to the past or future because they would both cause paradoxes because of cause and effect that affects everything, so time travel in reality might never be possible because the laws of physics just won’t allow it to happen in this universe as we know it.