The Diet Detective: How to Be Your Own Personal Trainer

5. Know Thyself

When you're developing your fitness program, ask yourself a few key questions (again, just like a personal trainer should):

A. Where do you prefer to exercise?

  • Inside
  • Outside
  • Combination
  • What time do you like to exercise?
  • Early Morning
  • Morning
  • Midmorning
  • Afternoon
  • Late Afternoon
  • Evening
  • Late Evening

C. How many times per week can you exercise?
D. How much time can you spend daily on exercise?
E. What are the best days for you to exercise? M T W T F S S

This assessment will give you clues to organize your workout schedule.

More: Quiz: What's Your Next Challenge?

6. Take A Fitness Assessment

Take a look at Shape Up America for a variety of fitness assessments. Take these every six weeks and note your progress. Also, take a look at my column Are You Really Fit for similar assessments.

7. Learn to do Your Routine Correctly

There are many websites that have fantastic instructional videos. One of the best video libraries is from the American Council on Exercise (ACE). Check out their library of great exercise resources: http://www.acefitness.org/acefit/exercise-library-main/. If you want to add yoga to your routine, go to Yoga Journal's extensive library.

8. Keep A Training Log

Write down everything you're doing and take a look at the numbers every four weeks. The best tools on the market right now are the apps for your phone. According to PC Magazine, "MyFitnessPal is one of the best all-in-one calorie counter and exercise trackers for the iPhone." I also like Fitocracy as a tracker. It's free and loaded with wonderful features, including a social media component.

More: 3 Tools to Make Your iPhone Workout-Friendly