You can practice the Four Tens Meditation to help you to learn to relax.
It is also a mindfulness practice as when your attention wanders, you return yourself to the present moment by starting again.
If you lose where you are, just go back to start again with your eyes. The practice takes around four minutes.
This is a recording of a live-streamed class from The Loving Awareness Meditation Course - Three live-streamed classes each week.
You can subscribe to The Loving Awareness Meditation Course website for free to be updated with new podcast episodes, offers and information on training. https://lovingawareness.fm/
If you want to just listen to meditations without the guidance, visit The Meditation Course Podcast here: https://podcasts.apple.com/gb/podcast/the-meditation-course/id1549271245