Re: Depressed but it's a bad time to tell my parents
@Cam1230 well done on having the scary conversation with your parents, and for talking it through until they understood and you had a plan in place. Given that today's events took place at school, you may also consider making your school aware of what is going on with you.
I've realised from your comment about being at school today that you aren't located in Australia, where we are (because our schools are currently in their final week(s) of summer holidays). This means I can't offer any advice on services to reach out (pun sort of intended) to, but we do have some articles that might be helpful. A great starting place is Self-help for depression.