Burn away

I don't know how long can I keep the current pace in the life. Work around the clock to numb the pain, and at work and home and asleep and everywhere, be reminded of what I don't want to know (what I can't deal with, what I can't control over life, what I just have to get over), and just keep going until I crash. I crash asleep every night, don't ever get enough sleep, and during the day for this, I notice my brain is sometimes not working in any given language.
I can be days without feeling hunger, and I can't imagine it not becoming even more chronic.
I feel sucked out of energy in the life. Like a candle reaching its end.