Your attitude and mentality play a huge role when it comes to achieving any sort of health and fitness goal.
Improving your health, getting a six-pack, and doing your first unassisted pull-up all starts with your attitude. A positive, one step at a time attitude will help you get to the gym to exercise. Your exercise will lead to positive mood regulation which will help you be a happier, healthier, more productive individual.
Something is better than nothing. Always.