This is one of the secrets that the professionals use to progress quickly and consistently.
Keep a notebook with your guitar practice space. At the start of the week, make a note of all the guitar related things that you want to accomplish. Every time you practice, make a quick note of what you are going to practice. Then after practising, wrote down what you did, and also, the challenges you faced and how you are going to overcome them. Then when you go to practice the next day, before you practice, read through the previous day’s entry. Then you know exactly what it is you need to be focussing on!
You can also record your metronome speeds in this book.
This helps you keep your practice more focussed and consistent long term.
This also gives you log that you can look back on of all the challenges that you overcame with your guitar playing and everything that you accomplished