Practise "Someone Like You" until you can play it without stopping!
I believe the best way to learn properly is you apply your knowledge, and so it's really important to be to learn the practise songs throughout the course properly. This means getting them to the point where you can play them without any stops or hesitations between the chord changes.
The first project I would like you to complete is to do just that. Practise "Someone Like You" until you can play it without any pauses, and keep on practising until you can play it at a reasonable speed.
Please feel free to post a video of you playing it and I will be happy to give you feedback.