It is not surprising that you also lost lean mass and could not recover it - clenbuterol is an aweful compound for fat loss, as it does not only burn fat - it also eats up the lean mass. Therefore, it is not a good idea to use clenbuterol, albuterol, ephedrine and T3/4. These compounds were not meant for fat loss, and the dosages needed for that will cause a lot of side effects. better go with something that was specifically developed for recomping, such as Cardarine GW - it will burn only fat, will maintain and even increase lean mass, and will add a lot of athletic benefits. The best purely cutting stack will be Cardarine GW-501516 + N2Slin.