Never Second Guess
Yep, I agree with Green Gragon. Make your deal and what ever that deal is, tell yourself you made the best possible deal. The reason being you cannot do anything about it after the deal is done. You will just aggrevate yourself thinking about it. Obviously, you made the deal for a reason. It was the best deal at the time., and you made the best deal. Accept it and there will be less stress involved. Plus, you'll be a happier person for it. Just my two cents.
Peace.
Tom
"Through Great Sacrifice..... Great Rewards Will Be Achieved"