As for your advice about deciding on a tone and sticking to it, I would add that it also helps to imagine someone you write for. For people it is easier to organize their thoughts when they address a person, not a nameless generalized audience. It is also a strategy used by John Steinbeck.

Then, you can also try saying your ideas aloud and record them. This technique helps when you have a writer’s block and feel like your head is empty. It is even better if you have a pet. Tell it what you think and then write down your thoughts.

Sometimes you also need to put your writings aside for a few hours or days if you are not in a hurry. Try to give your brain a rest.

Look for other people’s works to learn how they interpret a topic you are trying to develop. You should not steal their ideas. Try to reflect on what you read, have a virtual discussion with the author, look at your topic from a different angle. Sometimes I use paperhelp coupons to see how other writers work with my topic.

Finally yet importantly, write a diary. It is easier to form a habit to write every day, when you just have to describe what occurs in your life and what you think about it.