Quitting the wrong path takes more courage than staying on it out of pride.

Quitting looks like surrender and is often the more expensive choice for your pride. Staying on a path because two years are already in it means paying for those years again with the next two, and the only thing that protects is the story you told people about who you were becoming. Time already spent is a receipt, not a reason.

Ask what you would choose if you were arriving today, knowing nothing about what you had already put in. If the answer is clearly different, start looking at the exit seriously rather than guiltily.