No matter what, but you have to find that your true calling.
You need to be involved in things what you are interested, don't try to avoid this that's only way to live good life the way how it meant to be for you.
The way you earn money should be also from this once you do that you find all what you need.
It's true that we need to find the purpose for ourselves.
Because if we're still confused on how we live and what we live for, you'll still look at things very confusing and you're not going to be happy with what you do.
But as soon as you know your purpose, that's the time that your happiness is easy as how it can be by doing these things you're involved with.