I can't overemphasise how planning is important to productivity. When you plan you are saving yourself time and energy in the future. Think of the goal you want to achieve and make a plan on how to achieve it. Knowing the steps you need to take will make you more productive.

You need to put time aside to work and be productive. Don't just wait until you are free or have the time because you may never have the chance. Set out time to be productive. 

Take breaks as you work. It refreshes you and resets your ideas so you'll be more productive when you come back. 

If your plan is not making you very productive then review it and try again. 

Take your capacity into consideration before making a plan. This will help you to worry less and not overpush yourself. 

Hope these tips are useful to you. Thanks for reading.