Hi Isabella,
If you haven’t prototyped sliders before, check out our slider tutorial here to get familiar with the basic setup. Once you’re comfortable with that, take a look around the forums to see whether there are some example files you can use to learn how to build what you’re looking for. Here are a few threads to get you started:
Sliders and variables
Slider that works on intervals and displays dynamic panel
Incremental Slider
Dual Range Slider
If you get stuck while building your slider, feel free to post your RP file here along with some questions. I’ll take a look and get back to you with some answers.