How can I go from 'Knowing' to 'Doing'?

Hi everyone.  *waves*  I just joined this pod, and I firmly believe it was Divine Intervention that led me here.  I've been lost and feeling so alone for months.  I'm truly excited for the first time in months. 

The Reader's Digest Condensed Version:  Married these 23 years, three boys (two still living at home) and trying to make a name for myself as a writer.  My elderly mother moved to town last December, and all was well until 1OCT of this year, when she suffered a minor stroke.  That was the last day I worked outside the home.  I've focused on her since.  Well, most of the time.  She came home (to her own place) three weeks after the stroke, and I've been taking care of her since.  My older brother moved here to live with her, but since he's working 5 days a week, I'm the Home Care Chick.  I don't begrudge my time with her since she needs the other body close by in the event that she falls, but it's beginning to take its toll on me, and my family.  I'm sliding into the depression abyss I crawled out of two years ago, and I can't seem to stop it.  With only one income now, we're tight all the time, and I find myself worrying about bills and the holidays and everything else, knowing full well that this is unhealthy. 

I know that diet is important, and I've let my family know that red meat is a no-no for me, that I prefer whole foods to processed, and we do pretty well with the meat, but on such a limited income, whole foods are practically impossible.  Sugar isn't much of a vice for me, but caffiene definitely is, and sadly, so is alcohol.  I know I shouldn't rely on either of them, but the self-medication seems to be the only way to cope right now. 

I do meditate, and my yoga is sporadic because of my schedule with my mother.  This leads to many other worries.  Sheesh…  I just read over this.  I'm a mess!  LOL

Anyway, can anyone help me figure out how to take the food changes from 'I know I should…' to 'I'm doing it!' ??

And thank you, Melissa for starting this pod.  I've read through all of the topics and posts, and I appreciate you reminding me about 5HTP.  I used it two years ago, and it was a miracle.  I need to pick up some more. 

Namaste,
Sioux