For me, my 20s was all about exploring and toying with new concepts. When I reached my 30s I had to get serious and pick something I could see myself using for

For me, my 20s was all about exploring and toying with new concepts. When I reached my 30s I had to get serious and pick something I could see myself using for the next 30 years. There is a caveat to that though: you become rigid and 'set in your ways' so it's worth busting out of comfort zones if you are feeling a bit stuck with your chosen path.