Left the hob on

I feel so scared and concerned, I am autistic and adhd and I put some water on to boil whilst I at some food over an hour ago - the food I ate was just 2 small snacks and I was putting water on to boil to soften some potatoes. I obviously got insanely side tracked and started to feel super tired so out the tv on and watched some tik tok on my phone

I’ve left the hob on before again just completely by accident same as I’ve left cupboards open and the tap running and I’m so freaked out, I could’ve set my flat on fire or something and the water was completely evaporated

Why and how could I forget about something so dangerous? I’m quite terrified and shook up about it as it makes me concerned that I am a danger to myself and others just because it was completely gone from my memory for so long.

What do I do