You have the mindset and the ideas but how can one avoid experiencing entrepreneurial burnout? There are many ways to keep engaged and motivated, but here are some suggestions from proven entrepreneurs via the Young Entrepreneur Council :
Follow the 90/10 Rule
"Spend a solid 10 percent of your time working on something you love other than your startup -- whether this means pursuing a side hobby or freelance project, or brainstorming another idea. Forcing yourself to switch gears will reactivate the other parts of your brain/heart that you've perhaps been neglecting. Chances are that you'll begin seeing new areas of opportunity in your startup too!" – Annie Wang, Co-founder, Chief Product Officer, Creative Director, Her Campus Media 
Help Another Entrepreneur
"I believe that the entrepreneurial spirit is contagious. If you are feeling burnt out, volunteer to mentor another excited entrepreneur. Helping them, feeling their motivated energy and talking about how you got started will reignite your internal fire and remind you why you started your company in the first place." –Vanessa Van Petten, CEO and Author, Science of People 
Figure It Out for Good
"You may be attacking this situation backwards. You've identified this burnout feeling as a problem, and want to move forward by finding a solution. Try moving forward by moving "backward" first -- find the root of the problem. Why are you burnt out? If it's temporary burnout from overworking, that's totally different than a permanent burnout because you're no longer interested in the project." –Jesse Davis, Co-Founder, Entrustet 
For more insight and advice about how to stay motivated, read 15 Tips to Get Rid of Entrepreneurial Burnout .
The Young Entrepreneur Council  (YEC) is an invite-only nonprofit organization comprised of the world’s most promising young entrepreneurs. The YEC leads #FixYoungAmerica , a solutions-based movement that aims to end youth unemployment and put young Americans back to work.