If more s*** goes in than comes out, then you have to either reduce the amount coming in, and/or increase the amount going out. Remove more negativity or remove it faster, without being destructive with consequences to yourself or to others. Or remove by reprocessing into a positive. And/or minimise negativity around you. You can minimise by avoiding, sometimes that's the one immediate strategy you have to reach for, as you don't have time to figure out more yet. You can also minimise by doing processing to build up your boundaries, both internal boundaries and external ones. Also by practicing to push the negative away (can be a more visible boundary than the purely mental boundaries). So you do any of or each of these things, or otherwise you'll burn out and crash eventually.