It is possible, HOWEVER, this is not a trainer.

This plane is going to fly faster than a trainer and be A LOT more sensitive to the controls. (When you are learning slower and STABLE is what you want)

The other thing you will need to be VERY CAREFUL of is wind. The micro planes are designed to be flown indoors (such as a gym). With a breeze an experienced pilot is going to have their hands full. If you decide to fly this plane I suggest early morning or early evening when there is no wind.

I would suggest something like an Easy Star to learn on (especially if you are going to try and learn on your own). The Easy Star is larger, very stable, can withstand a good amount of abuse (crashes) and can easily handle moderate winds.

The ideal solution is to find a club and join it. The club will provide instructors at no charge. Think of it this way - learning on your own, plan on totaling at least 1 plane (probably several planes). The dues to join a club is going to be the same (frequently less) than the cost of a plane. With an instructor it is doubtful you will lose a plane while learning and you will learn THE CORRECT WAY to fly. If you have a hobby shop in your area ask them. They should be able to direct you to a local club.

Save the Citabria until you know how to fly.