We all have our excuses for not doing what we know in our hearts we just have to do. You'll get bitchy? So what? If she loves you the way you say you love her, she'll tolerate it. And BTW, you don't have to get bitchy. Medications for that. I know. I used them. Truth is, RG, it unfortunately will probably take a doctor giving you the bad news to "get you motivated." See how bitchy you become then.
Quite the excuses, get out of the denial, and do it!