Except there is no limit to the pain you can feel, and lack of trying only makes things worse and causes more. You may be miserable now, but trying can keep you from sinking to new as yet unimagined depths of misery.
Even if you manage to forget about life for a little while, it doesn’t forget about you. It’s getting worse, your problems are getting bigger, and it will come to collect eventually. The longer you’ve avoided it, the worse it’ll be for you.
Life sucks, sorry.
But if you keep trying, maybe eventually you’ll get to a better place. Maybe there’ll be some small reward for your efforts. Maybe not, but what else is there to do with your time on earth?