Sorry to hear that, people be cray-cray as they say..
The only advise I can think of is let it be water of a ducks back and try to surround yourself with people who resonate at a similar frequency to yourself. Personally I listen to everything and everyone but I give much more credence to some people over others based on gut feeling, experience and intuition. More often than not your own compass won't ever be too far off, so trust your instincts and don't waste energy on mood hoovers.
Virtual hugs going your way. Mind yourself.