This is an appallingly cliche boomer thing to say but life has ups and downs. When you're young the ups and downs happen on the scale of moments or days or perhaps weeks. As you age you can get large chunks of a year of ups or downs. Even older these can stretch to multiple years. For me I'm at around periods of 8 months or so of downs interspersed with ups. If this is your first time hitting a long down it can really seem terminal, this is how it will always be, etc. This is rarely the case as long as you have your health. So I can't say anything other than yes it sucks, I feel it completely, life isn't a monotonic upward progression toward anything. But after a few of these cycles you start not to care about each one too much. It still sucks when you're in the trough though.