If somerone says they want help, and when you offer they slam the door in your face, what is the next step? What can i do to be supportive to them, but take care of myself in the process?

Sometimes when people are hurting, they project their pain onto those around them. In those times it is important to remember not take it personally, as they might lash out harder than they originally meant to. Other times, the person might have been offered help before, only to be let down. Patience is key. Listening is hard, but speaking and exposing your inner feelings to another individual is no easy walk either. Let them know you are there for them, that they are not alone. Take it gradually and let the trust build up until the person feel they are ready to talk with you.

You are a very wonderful and kind person for wanting to help someone else in need. However, even though you're ready to give someone your help, the other person might not always be ready to receive that support. The best thing to do is let know clearly know that whenever they are ready to talk, that you will be there for them. I've learned that it's best in life to let the person take the time to gradually process their emotions and grieve. Because if you approach them when they're no ready, they'll just shut down and fail to address their emotions. Just give them the alone time they need to talk to them when they're ready.