Be a hypocrite.
When I am writing, I hesitate.
Do I understand this well enough to write on it?
What if I stop following this in a few days?
What if I slip?
It's better to hold back.
It's better to wait until I am sure I am living it.
The irony is that the things I write about are more likely to stay with me.
If being a hypocrite is stopping you from making assertions, the answer is simple: be a hypocrite.
Everyone is.