If you want to write then just...start!
I always wanted to study something very obscure that led to an unusual career.
I never thought it would happen, I was shy, I was unqualified, I was too old, missed my chance.
When I turned 30 I took an evening class, that led to a degree, that led to me being able to work in this field.
I am average, but I achieved this whilst having children and juggling every thing.
The biggest lesson I learnt was to not worry about the end game. To just put one foot in front of the other and keep bloody going.
I would never have believed I could get that degree but once I took the evening class and put one foot forward it snowballed.
I am still very average but I am happy because I am my own version of average. I am proud of my own small achievements and I got out of my own way.
Get out of your own way and just, start!!
You are still young. Look at this in a practical non emotional way. When you are about to turn forty what do you want to have achieved? Make a plan, even if it is just the five minutes a day that a PP suggested.