Honestly,
Find something to work on a Plan, Business Model, Sport or whatever you want to do put your mind to it and do it.
I stay productive by using music, it helps me stay on task and it's a major key when it comes to my work ethic as I know it also is a key player with many other peoples work ethic.
Also if you're looking for some hardcore motivation watch some Business/Entrepreneur Influencer Videos/Podcasts from people such as GaryVee, Grant Cardone etc.
Hope this leads you in the right direction, Good Luck with everything!