Start with God - the first step in learning is bowing down to God only fools thumb their noses at such wisdom and learning.
As iron sharpens iron so a friend sharpens a friend.
Discernment is God's call to intercession never to faultfinding.
I just completed a tour in Europe. I played every night. This requires traveling some days for six hours in a van or a train or a car. After six weeks of that I checked into the hotel and just fell apart.