I would say: it can be as complicated as you like for YOU - but keep it simple for the READER. :) In other words, translate the complexity into something the reader can easily identify with and absorb, without even realising he has done so. :) More
Necessary | It's amazing what happens when you actually do this. Things and people you had no idea were holding you back, changing your mood, keeping you low with them. Then when the thing or the person or the job or whatever it is, is gone, you suddenly feel free. And much, much better.
Exactly! I rather you tell me the truth and hurt my feelings then to lie to me because once you lie you gotta tell another lie to cover up the first lie and its just keeps repeating over and over. Honesty is the best policy always!