Work to keep a schedule and stick to it. Balance your time to fill your cup and focus on your business. Get fresh air and sunlight, hydrate, write down your top goals of the day & priority tasks so you can focus on the most important work each day.
Sleep and rest is important if you want to keep pace and not burn yourself out. Also, noise-cancelling headphones are the best thing that's ever been invented.
That you'll see results quickly. This may be true if you put in a lot of time and effort and have previous experience, but engines & businesses take time to grow. You have to experiment & refine, build relationships & network, & it's a long game full of testing / iterating on strategy & execution.
As your business grows, you learn what works to drive impact. Don't let lack of tangible results when you're first starting out keep you from putting in the work - it will pay off if you are consistent.