Such condescending drivel. The first "realisation" is what is commonly taught within the first 5 sessions of cognitive behavioural therapy. The fifth seems like a move in the right direction for a person who considers (2) and (3) to be so enlightening to justify teaching other people about them, but ultimately coming up with purpuses for your life and ranking them sounds like setting yourself up for a lot of disappointment once the inevitable days where such self-proclaimed purposes can't be achieved come.
Envisioning dedicating an entire blog to enlighten others about these "realisations" people generally have before turning 20 just makes you sound like a narcissist.