Keep yourself engaged in anything. Collect knowledge from your surrounding that is observe things around. Engage your 5 senses. Solve puzzles and riddles.
Try to focus more on your present and keep yourself engaged.
Why to waste our one life by overthinking. Have a goal. Change ur mind towards it. Mingle with people. Overthinking makes u sit still. Engage in sports. Have gud communication nd concentrate wht u do. We can come through this .🙂