When we say ‘yes’ to things, we convey our commitment to them. It is a different matter whether we will be able to do them easily or through patience and hard work.
At the same time, saying ‘No’ to the right things and at the right times also helps you say ‘Yes’ to otherwise ‘No’ things.
Both have their importance, they help you achieve more and only the relevant ones. So, choose wisely and do not regret.