Keyboard ctrl key from?

no
- in Acer
1

I handled my ctrl key roughly and now these white plastic parts have broken

Can you buy this plastic part anywhere?

(My laptop is an acer a515-51G-5200Q)

qu

https://www.laptopkey-europe.com/taste-acer-aspire-a51551g-11312.html
maybe something?
Otherwise google your laptop model + replace keys