How do you meditate? If you aren't supposed to be thinking of anything, how do you clear your mind?

I have tried it a few times, but I just keep thinking to myself that I shouldn't be thinking about anything.How do you meditate? If you aren't supposed to be thinking of anything, how do you clear your mind?
my answer isnt as complex as the other guy's but what i do is try it in a dark room and stare straight into darkness and just focus on the dark with your eyes open because the tendency when u close ur eyes is to imagine thingsHow do you meditate? If you aren't supposed to be thinking of anything, how do you clear your mind?
Just think about one simple thing and keep repeating it. Then slowly wipe it outta your mind and get occupied with just a calm mind works for me(I start off by thinking about the english premier league)
'

Ltd