Earplugs are very useful for me! I NEED them. I keep them stocked up in my home.
I also put a note on my front door that says "Do not disturb". (if you have that option)
I applied at subsidized apartment complexes to get out on my own. It took a year; but if you applied now, it is an option that you could make available for yourself later.
And, try to just start focusing on 'today'. When something is upsetting you, perhaps getting online and posting here could help? Call a friend? I personally have the local crisis line on speed dial to talk to someone!