You CAN Write
Write what you care about. What you love and what makes you seethe so much, so big that it cracks at you, destroying you from the thin membrane of our skin.
Connect with your characters, take up their problems, learn their voice. I do this by outright saying their lines. Get their tone, their volume, the method behind their vitriol, their suffering.
Use the Method Act.
Get to the heart.
Where it can become your heart.
Treat the characters as the people they are.
Write dialogue with care, give it some thought and don't be afraid if that takes some tries or ten minutes of staring at that singular not-yet line.
Find a place to keep your notes. And then another. And another.
Categorization and specialization is your friend. Keep certain stories together, whether by genre, character type, color journal whatever. That's a you thing.
Jot down the ideas that don't leave you alone.
Otherwise there is regret and then, never a dull day or a shortage of potential prompts and prophecies.