I would let it dry good, and then sand it down really well, and then make sure it is dust free, and put on a coat of sealing, bonding primer. and then paint it with the paint, you want to paint with. Paint with primer, in it, is like using no primer at all.

Thanks so much cat for answering. Do you think I should try to strip the paint before sanding? This paint was so thick, it will take me days to try to remove it all with a sandpaper. Also, do you think Citristip will work here, or should I try something else?

Citristrip would work, I think. Sounds like whatever you used for paint, was not even the right type of paint. Cabinet paint is usually oil enriched and thinner, so it flows out very smoothly. Stripping would probably be the best, so you get the best bonding from the paint. Make sure that primer you put on is both sealing and bonding.

If it makes you feel any better, I used some off-the-shelf white paint to cover some oak on top of a bathroom pony wall. Same semi-gloss I’d been using for doors and trim. Didn’t sand or do any special prep. Was tired & just wanted it covered & functional, so hastily brushed paint on & intended it as a temporary fix. Well, wouldn’t you know it’s been years and that quick coverup has held up even with daily use in a small, bathroom with poor ventilation, things being removed & set down on that surface constantly.

Ideally, you should have sanded, then primed, then sanded (easiest is a wet sanding sponge for doors and door fronts), then paint the first coat with a good cabinet paint, then sand again, then the final coat. We had great luck painting our kitchen cabinets with Benjamin Moore Advance Cabinet paint.

Thanks so much everyone for your replies. Your advice have been super helpful!!! I've been working on getting the paint off of the cabinet for several days now. I used a heatgun, which made things faster, but it was still a lot of work. Today I sanded everything again and I'm ready to paint with the primer. Finally, back to where I was 5 days ago! :D

I have Kilz-2 All Purpose Multi-surface Sealer and Stainblocker primer. After reading your comments, I'm not sure if it is a bonding primer? Now, I'm wondering if I should get the Kilz-3 or the Kilz Kitchen&Bath primer instead? Any advice on the primer would be appreciated!

Also, thank you for the tip about the sanding sponge. I didn't realize, I had to sand again after the primer, so I'll make sure to do that!

And you should really do 2 coats of final paint, too, and sand after the first coat, if you want a good, durable finish.

And use only a fine sandpaper between coats - at least 150 or 200.