Taking protein shakes or creatine is not good for your body...you wont realise now...but when your elder it will really affect ur health....its a well known fact...research it if you wish..
this may be a slow process, but in the long term its healthier for you to eat protein fresh so for example after gym have egg, fish, chicken...so fresh protein....
Regarding making ur veins bulge out...not sure abt that....good luck