The road to optimal fitness and health is not a straight and easy one. There are many pieces of the puzzle that need to be in place in order to get and keep the results that we fantasize about. There are actually three types of influences that shape healthy behaviour. These are predisposing factors, enabling factors and reinforcing factors.
Predisposing factors are made up of knowledge (do you know what your doing and/or how to do it effectively), attitude (are you starting with an positive or negative view), beliefs (do you belief in yourself and your goals), values (what is important to you) and perceptions (are you looking at it from the right angle).
Enabling factors are made up of skills (your physical ability), resources (what you have around you that can be used), accessible facilities (are you able to reach what you need), physical capabilities (are you able bodied or not) and mental capabilities (do you have the right mindset).
Reinforcing factors are made up of praise from others (do you have your own cheerleading team), rewards (do you give gifts to yourself for accomplishments), encouragement (do you get positive words), recognition (are your accomplishments made aware to others), and sense of achievement (do you feel like you've accomplished something bigger).
ALL these influences need to be in place in order to plan, do and achieve. Look at your system today. Is it able-ing you or diable-ing you? If not, something needs to be changed.