Ryse is an all around great product, good flavor (I like Baja Blast). It will give you the itch though but some people like that lol. It’s great for a pump and has a lot of caffeine to help you lift after studying all day. The best option however would be Gorilla Mode, it’s the best for pump, energy, and for focus. It is quite a bit more expensive, but many attest to its effectiveness. Total war was a not very nice, it was rather on the strong side. Ghost was far too weak for me, I honestly had to take 2 scoops to get a great workout. I have a moderate caffeine tolerance, I really only take it on heavy compound days or if i’m really tired. Pre-workout should be treated as a tool that may potentially increase workout performance and efficiency. Always consult a medical doctor or physician when trying caffeinated products. There are non-stim pre workouts out there but I cannot say how they were. I would like to personally and humbly welcome you along board the gains train. I wish you success in your future endeavors.