Sometimes we may feel that we have nothing to say or write

Sometimes we may feel that we are full of subjects
and do not know where to begin

In my own opinion one who wants to write can,

Write daily notes every day.

Write free flow of mind

Begin from one word and then another word and continue

Imagine a situation and describe what they see, hear, feel

Begin a conversation with an imaginary person and write it.

Begin an interview with someone or something and write it.

Write a letter to someone or something.

Thinks about their future and their ideal life and write about it.

Write their wishes.

Write about other people and begin with subject pronouns
“She …”, “he …”, “they”
or about themselves and others beginning with ” we … ”