How do I convince them?

So recently I was in a mental health inpatient unit for 16 days and I learned a bunch of skills to use when in distress and today was a bad day. I used mostly all of the skills I learned and I am still planning on acting on my thoughts. I attempted this morning and I also self harmed. How do I convince my parents to take me to the hospital? I bet they will brush off the fact that I attempted like they always do and tell me to practice my skills (then I will say I have and they will say practice even more). I’m so stuck