You might be interested by something that has been designed specifically for this problem. I created a state machine library for Go on top of which I mapped retry[1] and some other patterns. And funnily enough one of the first applications I implemented is an RSS reader[2]

[1] https://pkg.go.dev/git.sr.ht/~mariusor/ssm#example-Retry

[2] https://git.sr.ht/~mariusor/frankenjack/tree/master/item/sou...