Been at it for most of my adult life. How? Reading books on Spirituality, Humanistic Psychology, New Age. Into serious meditation (Vipassana as taught by S.N. Goenka) for twenty-six years now. Lots of self-improvement books read, plus attending the odd workshop.
Been a member of Toastmasters International on and off since 1972 and am still in it.
Trying to consciously make ourselves a better person really means a search within ourselves - Self Discovery. You won't find it outside. It's an inside job.