Life is not always the way you want it to be.
You may be planning to go for a picnic and play your ukulele,
but then it rains.
Planning to watch a Movie at the cinema,
No tickets are available.
Maybe planning to surprise a good mate,
But someone couldn't keep a secret.
But in the end, it's how life works. You can build your future by working hard on something, but you can never guess and assume what your future would look like. So don't get upset when things doesn't go your way, because you'll never know what the outcomes are. Enjoy every little bit of everything. Life is not meant to follow your way of life, you were meant to follow the flow of life.