Get your instructor to take you on several low passes over a long runway with a decent crosswind. Crab, slip, cross control at various airspeeds (including the slowest speed that you're instructor is willing to go) and power settings to see how much control input varies compared to airspeed. Have him show you what happens when there's not enough correction vs too much correction.
Good luck.
Agreed. Back in my CFI days the flight school I worked for would have the students, with instructor, fly about 5-10 off the ground going down the centerline. It helped develop good coordination.
Seems like you have just a small hump to get over before you solo.
Good luck!