There are a variety of ways to learn how to be a better rider. I learned volumes (when I started riding in the mid-80's) from a partner who spent hours riding with me and giving me tips. I also lived next to the Major Taylor Velodrome in Indy at the time. I rode with a club. I did a little racing. There are books at the library and the bookstores of course. A helpful employee at a bike shop can answer questions.
I depend on my cateye and heart rate monitor. I like to see my numbers as I ride.
I challenge myself with hills when I think I have enough base miles in. I tell myself that I'll do my best to ride up the hill, but walking isn't a crime.
Talk to people. They'll share good ideas.
Listen to your body.
Keep a ride journal to track progress.
Have a safe, fun time!
Barb