Hi Sandra, all great suggestions. Here's one more, and it may in a way provide a new foundation for all of them.

Dr. Dan Siegel teaches an exercise called "the Wheel of Awareness." It helps you find the always-present calm center of awareness FROM WHICH even the most intense emotional upheaval can be calmly observed, and integrated (without defending against it, reacting to it or trying to control it in any way).

ACT therapy (acceptance and commitment therapy) speaks of something similar when it points out that awareness is the context for ALL experience.

it takes some playfulness and exploration to 'get" what it means to shift attention to this calm center of awareness, but when you get it, you have a safe inner refuge available to you at every moment for the rest of your life. If you want an incredibly simple introduction, I recommend Siegel's "The Whole Brain Child" (really, it works for adults too!).

For a deeper experience of this, Loch Kelly's book on effortless mindfulness, or any of his brief "glimpse" practices you can find on YouTube, may also give you a feeling for this. Rupert Spira has some introductory exercises on awareness as well.