The idea of having a singular purpose in life is something that certain people are selling you. When you hear people talk about "their purpose in life" they are almost always trying to sell you to join something they deem are important. Most people purpose in life is to enjoy life and live. This can be just enjoying a day to day life doing things you enjoy. So yes you were born to be alive and enjoy it
This completely! There's no inherent purpose to life, it just - is. It's up to YOU to decide what purpose your life should have, if any. To me, simply enjoying the life you have is one of the most noble purposes a person can have. If there was a chance for a person to live a happy life, but they lived an unhappy life instead, isn't that the real waste? So as best as I can tell, the "secret to life" is simply-- do what makes you happy, and try to make other people happy along the way.