Well day 1 of not smoking and its going ok so far. I'm using the patch to ween myself off. I missed my morning workout but will make it up tonight by working a little harder. Today I'm wieght training for tone and lean mass. Higher reps so that I don't build much bulk so as not to slow myself down. I feel better today overall though. Hope this good feeling keeps on through the day with the not smoking.
Don't get into the habit of "making up" for missed workouts, especially when you are just starting out. That's just asking for an injury to occur as your body is just not used to being pushed in that way.
Regarding your post about a possible journal, I'd suggest starting a blog or joining livejournal for that. Then you'd actually have a way to look back at previous posts and see the progress you made, how you felt, and what you thought of your training at various stages. Plus people can leave comments! Just stick a link to it in your sig line.
As for the other suggestions, cutting out the soda (and the smoking) will be the biggest benefits as you work towards a healthier lifestyle. The empty calories and overload on sugar causes the body to crave food and sweets that would otherwise be avoided. This coming from a previously morbidly obese individual btw. You may be miserable in the short term, but long term you will be a much happier person without those two "vices".
Good luck in your journey!
- Kelly