Anleitung zum Mentaltraining: Lernen Sie, wie Sie mentale Resilienz entwickeln, Paperba...
18,92 €
It is so easy to give up under high pressure and let go of your dreams and hopes for the future. However, do not despair. Your mind is just like any part of your body. For example, if you want to build muscle, you have to work out a lot of hours.
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