Being beset on all sides by negativity is not a pleasant experience. With every way you turn, you may feel attacked and assaulted, both mentally and physically. This is often the experience of those who carry great amounts of light.
What to do? Breathe, smile, nod if you must and keep bringing in and shining out more light. Those that come to you this way are in need of deep healing and their attacks are merely attempts to gain that healing. You are loved, protected and very capable of doing this if you so choose. The universe made sure of it.