I doubt a Cub is a good first plane.
They can be tricky on the ground and tend to take off way before the ailerons become effective. If you don't have rudder skills, she'll hit the ground before you know what happened.

High wing tricycle planes are not that fancy, but a lot more forgiving.
If you want to learn fast, get one of these and save the Cub for later.

My 2 cents