I gotta lose some of ths weight

I'm old, I;m sedentary, I'm fat and I love bagels.I'm in my 67th year, and I've been driving a taxi for over twenty of these years. Okay, so I decided I want twenty more years. Isn't gonna happen if I stay like this. Maybe by shaming myself in front if the world I'll get it done. I know it won't be easy.