As someone who will be... ugh... 32 next week, permit me some older person commentary.
Things aren't good at a timetable you determine, so while it feels terrible. Saying "I don't think things will ever get better"... when you're 18, while understandable, isn't the span of your life.
Sure, things aren't great now - but life isn't static, there are ups and downs ... most of the time, with the most inconvenient timing and not in a way you want or plan. But that's life.
What matters is how you respond to it.
And while aversion isn't always the best solution long-term, getting out of your head and a binge-watch of something light and fun always helps clear my head