Great question, Manuel.
Years ago, I learned to stay focused on my 'why?' Asking yourself questions will help determine your own 'why'. E.g., Why am I taking this position with this company? Why should I go to this specific college? What impact do I want to make? Why do I work/study hard? Why do I need to learn this? Why do I need to give it my all? My 'why' keeps me motivated even when I'm tired &/or don't feel like giving it my all.
My 'why' is bigger than me.
Early in my career, my why was to put food on the table, a roof over my son's head, and to provide for him.
As I made progress and earned promotions, my why became even bigger. How will this impact my team & their individual lives? How can I help them to be successful? What's their why? Why should customers purchase this product? How will this make an impact on my customer's life? What's my customer's why?
Now, I travel all over the country. Teaching / training others and my why is to ensure I set my participants up for success for LIFE, both professionally and personally.
Your 'why' will get you up early, stay up late. 'Why' drives you to be better. Your 'why' will keep you motivated and focused to finish this/that, dream bigger, reach farther, than you ever thought possible.