Step 1: Divide the big problem into many small problems.
Step 2: Choose the first small problem and solve that first.
Step 3: Repeat Step 2 for all the small problems. And perhaps the hardest step,
Step 4: Don't stop until all the small problems are solved.
Strangely, I learned this lesson from doing chores. If you are like me and indulge in occasional marathon house-cleaning sessions, glancing at the entire living room at once will drive you nuts (books, papers, clothes, toys scattered everywhere.....). Start by dusting the TV. Think Small.