It is hard to talk to my parents about mental health.
That sounds tough. Are you planning to tell them about your mental health?
No, I don't want to talk to them about it, but I think I should tell them, but I don't know how.
I know mental health is a tough thing to admit to your parents, and you don't have to tell them until you're ready. Your parents need to understand eventually though, or else they're not very supportive or helpful.
Maybe I can trick them into thinking I'm okay for a while longer.
No don't give it, it is hard to admit to your parents that you are having a problem. After all you don't want to hurt them or make them feel bad. But they might feel better that you are being honest with them.