You can search on the internet to find some eye exercises. Most of them are very easy. And there are detailed procedures for you to follow. Hope this helped! I have tried that. they can help relieve strained eye muscles.
There isn't any eye exercise for your myopia. Eye exercise can't help improve eyesight. They can only relieve eye fatigue. But if you look at the distance for a few minutes every half an hour, you won't get eye fatigue that easily.
Sweetie, I suggest you to keep a balanced diet every day. This can help maintain the health of your eyes. Eye exercises can help relieve eye fatigue but they can't help improve eyesight. But they are good for our eyes too. Besides, some herbal medicines are good for maintaining the health of our eyes. You can search on the internet if you have interest.