Most instances in life you will get what you want. You will not starve to death, freeze in the cold, or be eaten by velociraptors.

You will get a job doing something close to what you love, and be paid enough to buy lots of stuff. You will find friends, even if they are just co-workers or that drive-through girl who gives you extra fries. You will have a good life.

But every now and again, you will try for something more. You will try and stretch for the next step up. You will get excited and hopeful and...

It won't work out.

You will be mad and depressed and frustrated. You won't want to give up. You will spend time thinking about what could have been.

Or you can just move on.