I used to have an L4, different I know but similar enough. As QDMx3 says the stick must be all the way back and then some. Speed is critical. If I landed the Cub at 55mph I'd do Tigger impersonations all the way down the runway. My touchdown speed was usually 45mph after an approach at 55mph and 50 over the hedge. It can be much slower with power and practice.
You can wind on full aft trim coming down the final approach but it takes a reasonable amount of forward push to keep the nose down until the flare but the aft trim helps to get the stick back when you're on the ground
Only trim aft once you are certain of a: reaching the field and b: are not going around though cos the pitch up with full power would be very "interesting".
I agree with the chaps above that if your speeds are OK you may have a problem with either the undercarriage rigging (try jacking it up and see if you can turn the leg to fuselage attachment bolts, if you can't they're bent) or maybe the rudder stops and/or tailwheel steering springs need adjusting to give more travel.
Those chaps doing the water skiing are bonkers