Stepping on the toilet lid with bare feet is really hard to do. It hurts and you put a lot of pressure on the joints- this is especially true when your first trying to condition for this type of posture. I'd suggest that you wear a pair of strong soled sandals (crap sandals). That will relieve a lot of pressure and give your more surface area to rest your weight on as some of the weight is distributed to the sandals. Another thing to try to do is do it on the ground. Practice and squat on the ground to get adjusted, or just grab a shallow pan to do your duty.... just remember not to use it for cooking later (he he).