Frame your goal statement positively. If you want to improve your retention rates say, "I will earn $10,000 extra for the next quarter" rather than "I will try to earn more money for next quarter." The first one is motivating; the second one still has a get-out clause "allowing" you to succeed even if you earn just $2 extra.
If you use a To-Do List - make yourself a To-Do List template that has your goals at the top of it. Post your goals in visible places to remind yourself every day of what it is you intend to do today. Put them on your walls, desk, computer monitor, bathroom mirror or refrigerator as a constant reminder.