If you've been working hard and need an extra push, a bit of coffee can help. Since both kratom and coffee dehydrate you, make sure to drink plenty of water prior to taking both. I find slowly drinking a cup throughout the time I'm working to produce the best effect. If you plan to use this method for school, it's important to know that kratom can affect short-term memory a bit. Not hing massive, but you may not want to risk it. On the other hand, some guys say it's still worth taking it since they get an extra few hours extra of focused studying per day.
Using kratom productivity/motivation can be tricky to get down, but well worth it when mastered. It's allowed me to more easily create this site which now more than pays for my kratom. I hope others can take advantage of what this plant can offer.