Listen to your Heart, it's what keeps calling for you....
jk
I am 6'3 and roughly 210 pounds, and am fully aware that advice comes at you in all different ways on the course and that everyone seems to be teaching different. I too am self taught but have attended lessons for putting, I am not much on true hc's as some rounds require a 66 and some just require a 78 to walk away with a pocket full of loot... :) But, if I were to tell you to listen and use the guidance of one person it would be "Ron del Barrio's Passive Golf Swing" I have never had a lesson from him, but my swing is a lefty mirror imange of his. I actually had a friend call me and tell me to type his name in youtube. The most similar thing is what I call my "line of sight". At the moment the club passes thru the ball my head is looking directly at my intended target..... Oh, and the 2 Thumb putting grip I now use came from a friend of a friend who consistantly shoots in the high 90's.. :)