Here is some huge advice -- medication alone does NOT work! You have a brain and you need to consider re-adjusting it, and working to make positive life changes. Just because you take a pill, it's not going to change your mind set.
Self harm? Well, that does nothing more than leave life-time scars on your body and can cause cellulitus, a condition which causes a person's limbs to swell up huge at will (a long-term effect of self harm)
If you can't talk to your parents, then find someone (adult) you trust and respect to help you. I'm sure you know someone. It could be another relative, a teacher, a school counselor, a friend's parent.
If you think something "isn't easy for you" it never will be. You need to turn this thinking around to "I know i can do what it takes to help myself and talk with someone or my parents about my life issues so i can get the help i DESERVE"
You do deserve help and compassion.