There are always excuses why we cannot write.
Family, work if writing is our second job and of course doing anything else but write; read about writing, push papers around the desk and call it planning.
The real reason though is the fear of writing - or rather the fear of being good at it. We always fear of success.
'I am not as good as this great author I am reading,' we sabotage ourselves.
Maybe, just maybe...this great author has said the same thing. But they persevered.
Believe in yourself and in your pen. Your thoughts are unique as you are.