Experiential exercises are usually imaginary road-maps so to speak; they take your through certain steps, include mindful attention to your own reactions and prompt you to show up to those reactions in a particular way..... these are the bread & butter of what makes ACT ACT...
Like with recommended readings, please be aware that while these are available on the net, they are not a substitute for therapy. I would also not recommend binging on them like a Netflix sequel - often times one needs to sit with and let whatever comes of these stew, so to speak. If this happens inside of the therapy room with a trusted guide, then that's probably even more powerful.
Having said that, here are some that may work for you .....