Hello!
As you know we are working hard on the PAST SIMPLE. You're doing great and I'm more than happy with your work about it.
To keep practicing I leave here the link to 11 Google Forms in which you can keep practicing with the PAST SIMPLE.
They are 11, so the idea is that you do 2 or 3 forms per week. You will start with form number 1 (the easiest one) and you will finish with level 11 (the hardest).
You already know a lot about the PAST SIMPLE so I'm sure you will find all these forms pretty easy. Each form won't take you more than 10 minutes and they will help you a lot to keep improving with the use of this tense.