# was I hesitating?

"I was not hesitating." or "I was confident in my decision." 

# Do I plan things according to the flesh ... at the same time?

"I do not plan things according to the flesh ... at the same time" 

# the flesh

"human standards" or "the way most people act"

# Do I plan things ... so that I say "Yes, yes" and "No, no" at the same time?

"I do not plan things ... so that I say 'Yes, I will certainly visit' and 'No, I will definitely not visit' at the same time!"