Have you ever worn a pair of shoes that didn't fit well? Maybe you borrowed them from someone else. Maybe they were a gift. Maybe they looked really cute at the time and were on sale. Whatever the reason, when you tried them on, you may have noticed something was off, but they weren't too uncomfortable when you took a few steps in them.
The thing is, you wouldn't want to walk a mile in those shoes. Definitely not twenty. You'd get blisters, your feet would ache, and you might even injure yourself. Yet people do this all the time, when they make decisions based on what other people say they should want, instead of what they actually want. And they wonder why they are miserable.
Take the time to distinguish whether your objectives are truly yours or others', and trust me, you'll be able to go much further.