1. Understand what to do.
2. Understand how to do it.
Most people set vague goals such as exercising more, improving on A or B, etc. The key is lay out the plan on what steps are needed to call this goal a success. "Working on it" is not completing it. You don't get to check it off your list if your still "working on it". One good point to remember is that the beginning is usually the most difficult both physically and mentally. Don't quit! Get past the first few hurdles and keep going.