I ask myself thiese questions daily: How will this situation affect me 15 years from now? If I look back on myself and my choices regarding how I behave, how I relate to others, what I am doing for myself in order to heal - will I be proud or will I be disappointed.
I am going through a divorce and I feel very angry due to being abandoned. I am disabled, cannot work, my daughter and I have no health insurance, etc. My husband (we are still married) has moved on to a new, happier life and it hurts. When I want to lash out I ask myself the questions above and remind myself to keep love in my heart.
Also - when I am intensely ill or worried about money, I distract myself with reading, movies, just being with my family. You can entertain your thoughts, but then try to release the pain if you can. Seek out others who understand online or in person. Talk talk talk and cry if you need to.