Im currently taking bullnox before i workout and then true mass after workout. ive noticed recently that the bullnox isnt doing much for me like it was when i first started taking. should i double the serving or switch to something new? im trying to majorly bulk. should i take a preworkout and during workout? i know preworkouts have creatine but should i take a creatine supplement as well? i get really lazy in the gym which is why i use preworkouts. i need the pump and motivation to be there.