If your parents knew the seriousness of your depression, that you are contemplating suicide, that they are that close to losing you, chances are they will get you help. Show them this post if you can so they can see how serious you are about needing help. They would be devastated to find out too late they missed your cries for help. Most parents are ignorant, they dont want to believe their children are in such distress. Your dad responded positively at first which means he is open to hear more. They just dont realize how bad off you are. If you dont feel you can talk to them, enlist the help of Mr. S again.

Likewater is correct. What they are doing is considered neglect. If Mr. S contacts them again and they do nothing again, he can report them for not getting you medical treatment.