The rage/soothe ratio is such a powerful concept. The first step is always education, of course, as that is the penicillin of TMS. After that, we tend to focus on the negative emotions ("rage"), attempting to release them via insight and sometimes expression. This is, of course, very useful, but after we've gained whatever insight we can via journaling or whatever else we use, I think it's appropriate to move on to a new step. Journaling and introspection are a wonderful gift and can be valuable throughout our lives, but they can't be the only tool in our toolbox and they can't come to dominate our lifes. If we focus on the negative emotions too much, we are inadvertently feeding them with our attention. This is where the rage/soothe ratio comes in. It teaches us to balance our exploration of the negative by focusing on the things that soothe us. Once we have gained our insight and mindfulness of the negative feelings, we can let them fade away by turning our attention to the better things in our life and being mindful of them as well.
I like to think of this in terms of the parable of the two wolves. By mindfully bringing our attention to the things that soothe us, we feed the parts of our brain that soothe us. The science for why this is true is quite dense: neuroplasticity, learned nerve pathways, and Hebb's law. However, the basic idea is captured in the story of the two wolves if we think of feeding the wolves using our attention (see below).
So soothe, away! (but first do the structured program or similar program, as it provides a great foundation of education and self-insight.)