Do you expect too much when you try to start or increase your physical activity? Success often leads to more success, but very high goals often lead to frustration. Start slow and set realistic goals for yourself. For example, unless you are already very active, don't set your new goal as 60 minutes of vigorous exercise every day. Instead consider starting with activities such as brisk walking for 10-15 minutes several days a week. By conquering smaller goals first, you are more likely to continue and ultimately reach your larger goals.