Final answer:
One thing you can do to improve your mindset when facing an obstacle is to remain optimistic.
Step-by-step explanation:
The one thing you can do to improve your mindset when facing an obstacle is to remain optimistic. Having a positive and hopeful outlook on the situation can help you stay motivated and focused on finding solutions. It's important to believe that things will work out and to keep taking action and trying alternatives until you reach your goal.