Baby falling while standing up

So my son is just barely 9 months old and he is really active. He has been climbing up onto low things for a while to stand on and now he is reaching for higher things like low beds and the bottom shelf of the pantry and things to pull up to stand and he does this no issue and he’s sturdy standing but then he just flat out let’s go and falls 😳 he doesn’t even try to get down and he’s already smacked his head a few times and I’m worried about him doing it on the hard floor. I know falling is all part of the process but my first child at least tried to get herself down and so she wasn’t just free falling she would be wobbly and fall which is less impact. Has anyone’s baby been like this and you helped them learn not to trust fall backwards every time they’re standing on something? 🥴