Hi so I'm a fairly significantly overweight lady and love riding my sex partner. The cardio aspect hasnt been a huge problem thus far (I'm also trying to improve myself in this aspect), my main problem is balance. I have terrible terrible balance due to my general lack of fitness, this is multiplied by a billion when im trying to be on my knees on an unstable surface like a mattress. Its to the point where I can't properly enjoy myself or get into a proper rhythm while on top because i constantly feel like im about to fall over.

so, my question is, is there any exercises i can be doing to practice this and improve my balance like this?