Setting realistic goals is important because knowing you can attain your goal helps keep up your motivation.

Why should your goals be realistic?

Setting realistic goals is important because it keeps an individual's motivation up. An individual who sets up unrealistic goals is more likely to become discourage through the process and is therefore more likely to give up on the goal.

What is a realistic objective?

'Realistic' suggests that there is a clear understanding of how the objective might be reached; that there are no circumstances or factors which would make the achievement of the objective impossible or unlikely; and that any potential obstacles and constraints have been taken into account.