Ever since I started failing in school I've felt like I have a mild depression.
Really? What makes you think that you're failing?
Because my parents did not bought me expensive handwriting notebooks.
School can be hard but to fail could affect your life and your future so it is best to not fail. If depression is the cause it would better to seek help so that you can perform to your best ability.
I just want to fail. I think its stupid to go to school
If you're feeling depressed and want to fail at school then you should see a psychiatrist. You may need some help to get back into gear.