I’m no exercise scientist so I can’t explicitly recommend this to you personally but this is what I use. Basically caffeine with some other chemicals that help you have a productive workout. It’s not something you use every time you go to the gym but it helps you push that little bit extra when under load.
Pre workout meals are equally important and I recommend watching some of Jeff Nippards YouTube videos to learn more about what makes a good pre workout meal. Eating in general is important surrounding the gym but again I’m no expert so I’ll leave it to them to speak on the specifics.
ITS IMPORTANT TO NOTE THAT NOT ALL PREWORKOUTS ARE CREATED EQUAL.
Do your own research before making a purchase
The extra time in the gym is probably due to some extended release caffeine that some blends include. But you’re 100% right about the level of caffeine included. It can really fuck up your day if you don’t understand your tolerance and cycling is something I highly recommend to anyone who uses pre workout. Makes coming back like Christmas even if the first week is a bit rough