Yes I do believe in time travel but we do it forward not backwards.
If you were to go to Italy, you could have taken as ship centuries ago and it would have taken you days.
But now, you can take a plane and do it in mere hours. So do you end up time traveling.
Same way in a smaller scale with vehicles. You can get to your workplace in minutes, whether before it would have taken you more hours.
So yes, time travelling exists, but not in the sense that some people might think about.