I don't want to sound negative at all but...
If you are in such a rut and you are having trouble getting out of it and you have an anxiety issue then I think you are trying to do too much Drossla.
It's very easy to set yourself all those goals, it's not so easy to follow them through and once you slip with them (which you will, it's a big lifestyle change and life gets in the way sometimes), it'll seem like far too big a hill to climb again and you will stop.
Rather than set yourself a huge task and say I'll start it from THIS DATE (several weeks away from now when it seems bearable), do one or two small easily managable tasks and start them from tomorrow, or even today.
Go for a walk...watch less TV...read more...go to bed early...just pick a couple of those simple things and build up as you go along.
I know where you are coming from, and it's a typical guy attitude - problem -> solution, apart from it doesn't work that way and if you fail you will feel worse for it and less motivated next time you want to do anything.
This cartoon illustrates things quite well, it's not your situation exactly but it's certainly related.
I think it's a good idea to update your first post, but start it from tomorrow.
Good luck!