Macbook air turns on by itself

When i shut down my macbook air m1 I wait for the screen to go black so that I can close the lid. The problem is it immediately turns on without touching anything. Sometimes I dont wait for the screen to black and I close the lid, put it in a magnetic sleeve, but when I turn it on the battery has been drained to 0%. Whats the problem and how can I fix it? The battery health is 100% and its a new macbook, I bought it last month