iv same problem but iv abused all drugs throughout my life so i not sure if the best person for advice, my advice is get magnesium or a like so the amphetasmines dont exit your system as quick. Iv abused em over 10 years and all other amphetamines such as meth, mdma etc etc.. iv always eaten proper meals and drank lots of fluids while i binge and im 31 but look 19.. idk if the age i look is in my genes or wh tbut i def not look like someone who has abused drugs most of his life