Long strange trip...

Hello there,
If you havn't guessed from my username I'm 44 and married. I basically had no idea I was addicted to PMO until a few nights ago while I was searching for something (masturbation related) and stumbled apon "The Marriage Bed" forum and their habitual masturbation/pornography addiction section. I knew within a few minutes of reading some posts I was exactly that person. Since I'm 44 I've had quite a lot of PMO experience but I never thought it was abnormal. In fact, I thought I was a the master of my domain. I never saw the red flags. I haven't had an orgasm with my wife in a few years. I even got a Viagra prescription from my doctor because I thought I was just aging normally. I very much enjoy my PMO sessions which last around 1 hour each time with very gratifying orgasms. Lately I have been smoking pot to enhance my orgasms. The gradual escilation was just normal I reasoned, after all I'm not getting any younger. I am certain that I need to free myself of this prison and be normal again. I really want to be the loving husband and father I once was, actually even better than before.
I have been to yourbrainonporn.com and watched the videos. Now I know what is wrong with me and why I cannot have an orgasm with her and what I must do. My wife has no clue about my porn use and I have been debating over telling her. I don't want to hurt her but this may be too much for me to handle alone.
Thanks for reading, I am hoping to learn from all of you.