Keep something with you to write at all times! You never know when inspiration might strike and it’s always a terrible feeling when you forget an idea. Seize the moment!
Going off that point, write whenever you’re inspired and motivated! If your circumstances don’t permit it, at least try to jot down a quick summary of your thought.
Don’t worry about writing in chronological order! Write whatever you feel inspired or motivated to write before the moment’s gone.
Don’t be afraid of writing a “bad” first draft! You can always change things later. It’s best to get your ideas down first and revise later.
If you find yourself unable to write, look for inspiration on the Internet or in books. Draw some of your characters or settings, make mood boards, take personality tests as one of your OCs, etc. There are lots of activities you can do to get your creativity flowing.
Stay organized! If you’re anything like me, organization is the bane of your existence. However, be sure to keep all of your resources together in a spot you will remember later. This includes both digital and physical things you might have.
Make backups of your digital resources! I cannot stress this enough. Technology is wonderful but also unreliable: you never know when something might go wrong. Make lots of copies of things in case something gets deleted or lost. Better to be safe than sorry.
Don’t delete your work! Even if you think it’s the crappiest piece of work you’ve ever did, it’s still nice to keep a record of everything you create. You never know if you’ll one day need it. Even if you never do, perhaps one day you’ll look back at it and feel good about how much you’ve grown.