Left a company after 23 years I love and isn't bad. How can I help others??

Hi

This week I left what I believe to be a great company as I've worked for them for seventeen years full time and twenty-three years part-time. I left 'mutually' but have left good staff behind with an antagonist working amongst them and other issues which aren't the company but people related.

I'm having an extremely bad day emotionally and haven't left my duvet. Whilst looking at my four walls of my bedroom I'm thinking of those I have left behind but also what I can do to help others. My hands are tied due to me leaving 'mutually' but there must be loopholes so I can help mainly other people. I believe in helping others and have real difficulty in looking after myself and in a way helping others does help me if that makes sense.