Steve, if you are reading this, I don’t post a lot on this forum and love your content, BUT.
Your cough needs to be looked at by a quack mate, I had COVID twice last year and the residual underlying symptom was the persistent cough, it ended up in a chest infection that needed anti biotics. Sorted me out in less than 3 days after coughing my guts up for a month.
Not saying you are necessarily the same but any cough that’s been going this long needs looking at. We need a healthy bandit to carry on this marathon of content!