Should this helmet be replace?

Crashed my bike a few weeks ago and I’ve still been riding with the same helmet I crashed on, is it still safe to wear or should I replace it? there’s also many more tiny dents and scratches here and there but other than that it’s still looks fine, any advice are appreciated thank you 🤙

(Specification) I crashed through a steel barricade head on at 30km/h and land on a tarmac.