A scraplift is a great way to practice your layout skills, giving your brain a rest from creative side while it just works on developing skills. It's a great practice for designers as well, and I used to do a lot of it back when I was getting started.
For this challenge, you need to create something from scratch, so pick something that's just outside your skill set so you have to work a little. Find a finished design (it could be a paper, an element, a template, etc) and reproduce it as exactly as you can using just your skills. This is a great time to finally google something you've been wondering about, like making a repeating pattern, using actions, etc.
Feel free to ask questions here and I'll do my best to help you towards your goal.