I have a harsh inner critic
Is that like a critical inner voice?
Yes, when you suffer from Perfectionism 
Perfectionism is a person who strives for flawlessness right?  That sounds rough.
Oh yes, it is not good for us that suffers from it
If you do not reach your goals, do you falls into a depression?
Oh yes or delay or i run out of time
This is not good.  Perhaps you can seek counseling or try meditation??
I am trying to look into counselling
Have you thought about Christian counseling?  Its a form of secular counseling