Are there pills that make you last longer? Also is there such thing as "bound" and "free" testosterone and is there to convert the bound into free?

No pills. Testosterone circulates in the blood stream attached to sex hormone binding globulin (not biologically active), Albumin (biologically active), and a small quantity is "free"(biologically active). There is no reason to convert bound to free, it will not make you any stronger, better, viril, or make you last longer. Do not fool with mother nature, bad things will happen.