I am only on my 24th jump. I was landing on my hands rather than my ass. I found I was holding my legs stiff on approach and looking directly below me. I always do practice flares under canopy in my control check, that certainly helps. I read online to visualise your landing like stepping up off an escalator. This visualisation tool helps me keep my knees bent and helps me follow through with the flare after initial touchdown. Experiment, find what works for you.