Congratulations! What's the plan now? Keep flying the GCAA or start shopping for a Citabria?
As for the weight, it's awkward at first but gets easier as you figure out how to put your weight behind it to get it moving without breaking anything. I generally will grab the tail by the handle (lower aircraft-right in front of the horizontal stab) and lift/pull to swing the tail and then push on the leading edge of the fin (just above the curve where it transitions out of the fuselage) and near the root of the horizontal stab. Once you get it moving and the tailwheel swings around to move with you, it gets easier. Maybe that helps?
Tailwheel bar in the hanger, Bartman's technique on the ramp or in the bush. Don't lean on the fuselage, you'll break a wooden stringer.
Buddy got a Citabria stuck in the sand on a beach and bent the wing struts getting it unstuck. Flew it out to the nearest airport and waited for parts.