CBT is also known as Cognitive Behavioural Therapy. It teaches us how to challenge our thinking patterns in order to change and improve our mood, our level of anxiety, our body sensations (like butterflies in our stomach), and we what do in response to negative emotions. CBT involves analysis of everyday situations and homework to be most effective. With a therapist's help and support, a client can often gain significant insight into themselves and improve their quality of life by decreasing their everyday suffering in simple ways. CBT is a gold-standard, evidence-based best practice for depression and anxiety.
I can help you decide if CBT is a good fit for your situation and needs. Note that a CBT approach can also be used to treat trauma. It is called Cognitive Processing Therapy and described here.