join the club that said you could learn to fly with your plane the way it is.Dihedral makes a plane stable but a high wing or shoulder wing type needs less than a low wing.the less dihedral the less effective the rudder is for making turns.Now one of the best four channel trainers in years past was the jensen ugly stick.It had no dihedral and was a good trainer and sport plane,still is.back about 1980 the trainer became a 4 channel ,high wing,flat bottomed airfoil,lots of dihedral and trike gear.there were a bunch like the pt series,the aerostar series top flite had the sierra and others I can not recall.You may take longer to solo with your plan but will have more developed flying skills than others that start at the same time as you.