These are online resources I often utilize in session and encourage my clients to practice outside of session:
Here is a link to a very helpful interpersonal effectiveness skill taken from Dialectical Behavioral Therapy, a cognitive behavioral therapy developed by Marsha Linehan to treat people suffering from Borderline Personality Disorder. When mastered, this can help reduce defensiveness and deescalate others, as well as help you express yourself in a healthy way.
This is a link to a great mindfulness meditation video by Professor Mark Williams.
Differentiating between thoughts and feelings is a common problem for people learning cognitive restructuring to help with anxiety, depression, and other emotions. This link can help.