To be an entrepreneur is to wear many hats. There are many skills, traits, and lifestyle decisions that we all make universally. I've been running businesses for 6+ years, and have learned a lot along the way. And I don't mean just about marketing -- I mean myself included. These are what I believe to be some of the best tips to maximize your productivity, results, and happiness as an entrepreneur.
Get swole
Okay, maybe not literally. You don't have to be a world class bodybuilder, but you should exercise on a regular basis. It helps to improve your confidence, focus, and overall mood on a daily basis. This will allow you to get more work done, get distracted less, and even achieve higher quality sleep. I recommend beginning with cardio, like running or swimming, and bodyweight exercises. These don't require any equipment, besides a pool for swimming, of course.
Keep up your diet
When people hear "eat healthy" they think that they have to spend hundreds per week on organic food and the highest quality products. You don't. Eating clean is a lot simpler and cheaper than you think. For example, my diet consists of lean protein, complex carbs, healthy fats, supplements like a multivitamin and fishoil, and I snack on things like peanuts and fruit. It's not rocket science. I buy what's on sale at the grocery store, and I'm able to be in awesome shape while being healthy, too. Seriously, don't overthink it. Just eat better, remove what you know is bad(candy, pop, etc) and you'll see/feel the results.
Hang around good people
This is a huge prerequisite for success. Hanging around negative and toxic people does absolutely no good for your life, business, and happiness. I don't know a single person that spends time with negative people and can say something good about it. You need to spend time with people that uplift you, relate to your hustle, and make you feel inspired to work harder. It takes time, but it's so worth it. Nowadays, my network consists of pure entrepreneurs, winners, and really hard working people. Yeah, not all of them are in the same space as me. Not all of them make 6 figures. Not all of them are grinding 24/7. But they are good people that encourage those around them. That's what matters.