Having practiced 20 minutes of meditation per day since the age of 16 (I started to learn how to lower heart rate and calm myself since I was heavily into sport

Having practiced 20 minutes of meditation per day since the age of 16 (I started to learn how to lower heart rate and calm myself since I was heavily into sports), I thankfully have no issues going to sleep. That said, things I learnt along the way. 1) your bed is for sleeping and sleeping only. Not all of us are lucky enough to have a separate room for work and sleeping but at the very least, don't even think of taking work to bed. Be it laptop, or phone, your bed is sacred. It is for relaxation only. Which is generally why using a phone before sleeping isn't a great idea. Our phones and our activity on it have become part of our daily routines. The whole idea of going to bed is to separate from the rest of the day. 2) exercise. Your body can only go so far. Exercising well ensures that come night, your mind will be telling you to just go the f* to sleep. 3) time block yourself. Do not operate with flexible time slots. Set a routine, and set the times. I've found that 1 hour focus time (turn off the internet if you have to) will see yourself getting more done than if you were to kind of free flow for 3 hours just because you have 3 hours available to yourself. Our brains our crap at sticking to something unless given very specific parameters to operate within, so set those boundaries. Ideally, your time slot should end 30 minutes before bed latest. It doesn't matter if you haven't finished the problem at that time, write a comment which has the set of steps you want to try out, and switch off. No buts. This practice will not only help your brain get trained to switch off, it'll also train yourself to focus better (I guarantee the latter) 4) if you find yourself mulling over what to do tomorrow, follow what others have said. Write your stuff down, and turn over. No googling. Nothing. Got something to google? Write that down too. Your brain will eventually recognise that it doesn't need to take on the overhead of tracking tasks. Or be like me. Forget about what you have to do and wait for someone to remind you :D :D (the latter is NOT for real. Don't try that at home or anywhere else :D )