My instinctive response would be to recommend getting your finances in order first (like Erin says). That should relieve at least some of your pressure.
If you have a financial planner, spend some time with them working out a plan. If not, I would strongly recommend grabbing a few books on personal finance (Personal Finance for Dummies is a decent one). "The Richest Man in Babylon", "The Automatic Millionaire", "The Wealthy Barber", "Rich Dad, Poor Dad" are all great books to get started. I don't know how much of this stuff you already know, so these are books that cover the basics. In general, the concept is to spend less than you make. It may mean some lifestyle sacrifices upfront, but it can give you lots of security over the long term.
For example, you have trouble paying for your house? Perhaps you should consider moving into a slightly smaller house, or perhaps one slightly farther away. Unfortunately, many real estate agents try to find you the biggest and/or most expensive house you can afford, and sometimes that can be too much.
I really recommend reading "The Millionaire Next Door" as well. This book is more advanced than the above, in a sense. It really is a wonderful guide to what habits and beliefs make millionaires.
If you have more questions, feel free to PM me or ask in the Money forum.
I hope this helps.