#9 No Support from Friends & Family
SHARE your goal with friends, family, or co-workers. If you are afraid you will tell them and then fail to achieve your goal, then you DEFINITELY need to tell them! It will give you the motivation to prove them wrong. Fear can often be the most powerful form of motivation. Use it!
Family & friends should be supportive of you especially when you get into the hardest, longest weeks of training. They need to be understanding and willing to help. Word of Warning: Do not try to keep them updated on your day to day progress. Unless they are a runner or workout freak, they simply will not understand nor will they want to hear your mile by mile break down of your long run or rep by rep of your squats and bicep curls. Think of that friend or co-worker who insists on telling you about every shot they had yesterday playing 18 holes of golf. Do you really care to hear about it?