Why evolving confuses me?

I get sleepless nights thinking about my future and career path I would take. It is all bizarre to think about what has not been transpired yet be confused and worried over it, but that’s how we humans go.

The words that are flying these days like a fire in the Australian wilds- “Love what you do and do what you love”. Well that’s an incredibly motivating quote to read but a very disgusting and sometimes purely hypothetical quote when you apply it into practicality.

We humans by nature evolve over a period of time. Like I always wanted to become a pilot who could fly those supersonic jets but this dream slipped away in the mist of different interests I developed over a period of time. I then had a fantasy to become an engineer, a doctor, a banker and it all just kept changing till I completed my college.

If you look for patterns (well there is are patterns as such, all pure work of my mind that always takes me into something) here as I grew my interests changed, I met people, traveled places, read books and newspapers and understood life. It all impacted by choices, my dreams, my imagination and my take on life.

I still think that it will keep on evolving over the period of time. The thing here that really confuses me, do we humans settle for one purpose or career at all? Well I have seen people love their job and are absolutely content with what they are doing and have done it all there life and that’s where my confusion compounds. It makes me believe that after a point when your mind has fully evolved you settle for something or this evolution is a continuous process? Searching for answers. Any help to put an end to my confusion?