Your child is now more aware of his environment and can get distracted easily. He may want do things at a slower pace and may lack the focus you need from him to do other things.
What you need to know
Your child, at this point, may be fully engrossed in play or an activity while on the other hand, you want him to wind up the play. When he does not listen, it frustrates you. The challenge to deal with is, he wants things to be in his control and is eager to gain some, though reality may be the opposite. Tell your little one well in advance that the play(activity) time is now over. For instance, you can say, “Let’s say bye-bye to all toys, books” etc.
You can also incorporate some extra time in your routines. This will ensure that you both are happy and there is no room for frustration to build up. Please keep in mind, your little one is likely to take his time to learn this.