Can I paint chalk paint over other paint?

I've used chalk paint over other paints. I sanded first to remove the sealer and make it smoother.

Yes, you can use chalk paint over paints. I always lightly sand before I paint to remove any imperfections and to scuff up the surface, which makes paint stick better.

Lightly sand and wipe clean and have a go at it.

In deed you can, but sanding always helps. Here is the complete tutorial to help you with an ebook to download. https://bushraslifestyle.com/how-to-chalk-paint-furniture-plus-chalk-paint-recipe

Hope it helps!

Bushra

Yes! Just sand a bit of there is ant shininess