@JoeOTAir
There all sorts of coping skills out there. Is there anything specific you are trying to achieve? Understand, that no matter what skills you choose to learn, there is no quick fix. Tho, it sounds like you're looking for something to slow you down & keep you in the moment..... Mindfulness. These are just some examples. I would be happy to help find something that might work for you.
Boxed breathing
Tai Chi
Meditation/guided meditation
Even something as simple a coloring.
@JoeOTAir
As for tripping over words, a simple thing I've learned is to keep some kind of drink available, whether it is water, coffee, etc. Before speaking, take a drink. It's a short pause, so it's not awkward, but it pauses the mind as well. Practice at home first over the weekend. Even if it's just normal conversation.