First Time Plane Travel

I have a trip coming up in August for my bachelorette from IL to FL and I am terrified as I have never been on a plane before and the thought of it makes me panic. Especially with everything going on in the world, my brain keeps making up these scenarios and I have no idea how to reassure myself. For anyone that has been on a plane before many of times, I need that reassurance that everything will be fine. Mind you, it's like a 2-3 hour flight but I still keep freaking out internally!!!!!