My Two Cents: For Example
I think everybody has those moments or days, even weeks, when
"I don't know if I have what it takes to succeed"
seems to overshadow
"Yes I can".
I ran across this story about football player Martel Van Zandt who was born without eardrums yet, excelled through the ranks of high school and college football to arrive as a rookie for the Manchester Wolves, and it renewed my "can do" spirit and adjusted my attitude once again...
That's my two cents (for whatever it's worth).