Is it okay to take yourself seriously?
Or should you be happy and easy-going?
The answer is: you should take yourself seriously and be easy going in the process.
Take your mindset seriously, and be easy going towards the first time mistakes (second timers are the ones you didn’t learn from).
Take your efforts seriously, and easy going towards someone else’s.
You always know when is it the time to be disciplined and when to chill. You just need to decide – which will come from practising serious discipline as well as easy going discipline.