don't buy gadgets
buy wisdom
BUY THE BOOK: "STICK AND RUDDER", read it. Then read it three more times.
When I got my ppl (back in prehistoric times) I didn't buy a headset until I got my instrument rating.
OK, spring for some of those earplugs that are yellow and squishy.
Hearing the plane is part of learning to fly!
why not try for five lessons a month, instead of looking at weeks. Also get into the habit of watching your local wx (that's weather) forecasts and schedule as much as you can when the wx is good.