Fighting my inner demons

We all have them. For some people it's drugs, for other people it's alcohol, for me it's my weight loss. After going through fertility treatments I have gained about 12lbs (which, in the fertility treatment world, that's pretty low). I noticed that even though I am doing Weight Watchers and I'm in the gym 6 days a week, I haven't lost. So I go to the doctors because I'm convinced that those evil drugs fucked up my thyroid. My doctor explains that it could take up to 6 months to get those nasty drugs out of my system but she checks my thyroid just to be sure. Nope, not my thyroid. Then, this past weekend, I get a fitness assessment done and I'm told that my cardio range is on the poor side. In response to this information I take, keep up and complete a spin class on Monday (fuck you trainer guy). Yesterday, I get to the gym and get onto the elliptical machine. I'm peddling along and I hear my brain say "Hey, you are taking yoga tonight, you really don't have to kill yourself here". Other side of the brain responds "Um, yes you do - your cardio sucks remember?" Then, the one man I can't argue with, Will Smith, pops up with his new video "Switch" and it's all over. Will looks at me as the video is starting and says "get that ass going girl". So away the feet go (with the hill climb program on the elliptical) and I'm just jamming away. The next few videos rocked as well and just kept pushing. The whole time my brain was fighting. When I finished I realized that my heart rate was up higher than it's been in ages. Last night I took a yoga class. They keep the class pretty warm (not as warm as bikram but close). I was sweating my ass off. My brain was fighting again (and if you two don't cut it out I will be forced to separate you!) but the good side kept winning and I kept pushing. I got on the scale this morning and half way through the week, I'm already down 2 pounds. I guess it's time to come clean.... I haven't been pushing myself hard enough. Just showing up at the gym isn't enough. I have to push myself beyond my comfort zone. I have to get super sweaty and gross and not be able to talk because I am working so hard. Maybe if I keep this up, I will actually get to goal by the end of the year (20lbs away).