What do I do?

Im going on a cruise soon with my family. I checked and there is a high probability that I will be on my period. The problem is that there are pools and water slides. I just recently got my first period. I use pads and I know I'm going to have to wear tampons because I'm gonna go swimming eventually but I'm not entirely comfortable with wearing tampons just yet. I feel rushed And my mom keeps bugging me about it. What do I do ? Plz comment. I need advice