Supporting Raise Sex Position is not for every couple. This requires some strength to carry your weight. He should have enough power and strength to carry all her weight, while she also needs strong arms to hold on to him. Ideally the position is designed for a man with good built and a petite woman.
If you think you’re not fit enough to carry her while pounding her hard, you can try to leverage her weight by letting her sit on a raise platform. Perhaps on top of the table or the cupboard. He can enter her while standing with her legs up on his chest and shoulders.