Losing Control

I don’t know what to do with all the emotions I am experiencing within such a small space of time. I have experienced so many today; anger, sadness, numbness, bursts of negative energy, exhaustion, tiredness and agitation. Most of those came within an intense couple of hours.
It gets to the point that I want to hurt myself and/or damage something around me. Today I kicked my bucket up against the wall, taking a chunk out of the wall and continued to throw the lid across the room. Then cut myself.
I find myself holding my breath just to see how long I can, and then lying on the floor in tears with complete exhaustion.
I don’t know how to cope with all this and how much longer I can on my own.
It's been another day indoors.