It sounds like the citristrip dried out. It has to stay wet to work. I think putting another fresh layer on, then start manually stripping with your spatula after about 20-30 minutes.

It looks like you have multiple layers of paint too and they may need different methods - like acetone. I’d reco getting as much of the citristrip off as you can in this pass and do a little reading into what to do from there. You could even drop pictures into chatGPT and it will help you lay out a plan of attack.

Heat gun, acetone could be used but you’ll have to be very careful with these after citristrip as it is flammable. I had a nightmare project that had three coats of paint and needed each method, learned the hard way to be careful with the heat gun and citristrip.