The question of whether to have therapy came up over at yours, tiramisú:
"I'm also not sure what a therapist could do to help me, especially now that I can pinpoint the causes of my unhappiness to multiple sources."
I have been resistent to therapy in the past but am glad I finally underwent the process. I, too, could pinpoint the causes of my unhappiness but didn't have the ability to deal with them. Knowing is just the start, dealing is the real work.
As I wrote previously, frustration was (is) one of my big three triggers; frustration with a number of things but usually with myself. It came up ... colinwalker.blog