It is great to be introspective, self analysis can be useful, but only if it results in action.
If not now then when? Oh I can always do it tomorrow. Unfortunately there is no lifetime of tomorrows.
Be humble and grateful for what you have and the universe will reward your gratitude.
I wish my capacity for reason would always translate into action, but it doesn't.
What is it you want? My reply, I want what I have.
Look inside, without anyone else's validation understand that you are valuable, talented, unique, and worthy.