Start your own web site if you've got something to say.
Ask your parents or teacher to check out YOLA to get started.
It is free if you stay with the basics.
This site was made from the basics and there are lots of designs to choose from and you do not need to know html or other involved computer terms.
I am not connected to YOLA and this is not an ad but a recommendation.
View some other YOLA sites here: