Have I stopped believing in myself? Or am I not having faith in the promise that "In my weaknesses, God is glorified"? Or is the Lord taking me to another road?

Have you just blocked out this part of me or have I caused this upon myself and I need to pray for healing and restoration? Lord, I want to know what's happening.

I can do all things, through Christ who gives me strength
But sometimes I wonder what He can do through me
No great success to show, No glory on my own
Yet in my weakness, He is there to let me know

His strength is perfect when our strength is gone
He’ll carry us when we can’t carry on
Raised in His power, the weak become strong
His strength is perfect, His strength is perfect

We can only know, the power that He holds
When we truly see how deep our weakness goes
His strength in us begins, Where ours comes to an end
He hears our humble cry and proves again