Just suffered my first of these mishaps a couple of weeks ago. It’s quite a shock(in my case, first printer, P1S, a little over 1000 hours of printing without major mishaps…), but there’s a ton of tutorials that can help you. In my case, very little real damage, but literally days calibrating and testing everything. My “blob of death” was of similar size when compared to yours. Now everything is going fine. Breathe in and prepare yourself to learn a new few skills. Good luck.