SOLVED. Possibly YA - girl with amnesia wakes up in a park. Spoilers ahead. [s]

[Lorena]

i read it probably 5 years ago and it appeared pretty recently i think

So there’s this girl with amnesia and she wakes up in a park i think and ends up in a pub where there is a strange waitress. she later finds out that waitress is a robot she programmed, she reprogrammes it then it leds her to a van i think? then she remembers she is some kind of an enginneer making experiments and provoking amnesia to herself and that van is some kind of laboratory to her.

[Ayshe]

The Lost Days? It seems to match your description.

[Lorena]

yess, that was it. thank you!