Guitar Journal - Advice Please

Hi I have just started to study guitar more seriously now for the last few weeks. I have a guitar journal that I write down things I have learned and review this on the bus and at nights.

What I am wondering is are there some recommended exercises I can do in the journal?

In my guitar journal,

I usually just write what I practice and the speed on the metronome that I practice to. Then the next week or a few weeks later I go back and challenge myself to practice the same thing at a faster speed.

Don't know if that helps you out but that's what I do. It's a good motivator. For me anyways.