We love telling people to listen to their heart, but the heart is an unreliable guide when the work gets ugly. Your heart will push you onto the road with high-minded dreams on Monday, only to abandon you the moment the cold, quiet reality of repetition sets in on Thursday.
When the road feels long and exhausting, telling yourself to "keep hoping" changes nothing about your velocity. Hope is not a strategy, and passion is a terrible engine for long-distance travel. The people who actually cross the finish line do not do it because their doubt was somehow quieter than yours. They do it because they stopped treating their emotional state as a condition for taking the next step.
Carrying temporary struggle becomes unbearable only when you insist on carrying the whole weight of the future at once. The fear of "what might have been" doesn't get solved by grand speeches or emotional speeches in the mirror. It gets solved by reducing the mountain down to a hill you can clear before breakfast.
Forget about your heart’s desires for a moment and look at your calendar. Shrink the entry point, lock in a fixed time, and do the boring, necessary work today. You do not need to feel inspired to keep going; you just need to keep the appointment you made with yourself.