A molar pregnancy but got Choriocarcinoma cancer!!

So on my scan on the 4th of August 2018 they told me they couldn't see a baby so then when they removed the tissue for testing it was a molar pregnancy instead! But they never removed everything. My homores were 1000 in august and now they are at 20450 because I have choriocarcinoma which is a growing cancer they also knew this through a new scan as there was lumps of it in my womb. So now I am off to London Monday for treatment which is chemo and another drug. I am actually scared I only turned 20 8 weeks ago. Has anyone else had tbis kind of cancer and has came back from it having children etc? Dis you survive? Xxx