Hi Margie and welcome to TE

Congratulations on getting into riding and your new bike. Those Trek Pilot bikes have a reputation for being pretty comfortable to ride, which is always nice.

About clipless pedals, although I don't have any now, I have ridden with them before. Basically if you find it difficult to clip in (or out), then it is usually a) your technique, practice it a lot to get better OR b) something isn't right with the clipless pedal or cleat set-up which is making it harder for you.

Did you get the pedals locally? A good start might be to take them (and your bike) to your local bike shop (LBS) and have them looked at. If that goes ok, then just keep practicing.

Good luck