first of all thanks a lot for the kind words.
You seem to have done all the hardwork and all you need is the right kind of treatment.
YES, THIS CAN BE CURED WITH THE RIGHT KIND OF TREATMENT. IT HAS TO BE EITHER MEDICATION OR RIGHT KIND OF TALKIGN THERAPY.
Usually, we start with medication since really qualified people arerare to do the actual kind of talking therapy that helps. Counselling
is overrated and does not help to cure the OCDs. It needs specific other talking therapies. It would be best to have both.
I udnerstand that stigma of psychiatric ilnesses prevent a lot of people from getting better. Here is the oppurtunity for you to show your strength of character. Find ways of convincing your parents as much as you can. If it works all of you will be happy.
If they do not consent, then you will have to find out some way to help yourself by getting the help of a psychiatrist
and only you will know how to do that. There are lot of online consultation services nowadays including on this website and that should prevent problems at your house about "going to see a psychiatrist". You can do it from home and nobody needs to know.