There is certainly not THE perfect order to start meditating in the 7Mind app. It depends on your previous knowledge and experience with meditation.
For beginners, we recommend the Initiation course. Afterward, you can choose courses on specific topics according to your needs and interests.
Of course, you can also use our single meditations at any time, if it is suitable. The individual meditations in Nature/Sounds are better if you already have some meditation experience, want to meditate longer, or need less guidance.