Hey Affliction, I haven't commented previously, just finished reading your post, and thought I would check in with you and see how your doing.
You have had some great advice here already, I have a not dissimilar addiction story as yours although it's a different poison.
Keep focusing on yourself and your immediate situation and don't try to look too far ahead.. If one day at a time seems to much, break your day down into smaller portions and focus only on what needs done during those increments.
I found this particularly effective during anxiety attacks.
Practical tips aside, you have a good, indepth perspective., which will only improve and become clearer as you gain your sobriety.
You should be incredibly proud of what your trying to achieve whilst holding down a job and family, and whilst you don't feel like it you are showing a strength that many just can't find.
Keep doing what you are doing, and most importantly remember one mistake does not mean failure or giving up. There are many bumps along the road so keep your head up.
All the best, and take care.