When asked, "What language should I learn first?", my answer is always "English". If you can't communicate clearly then you can't do your job as a programmer properly. As a programmer your job does not begin and end with code. You must also be able to write documentation clearly. I recently came across two excellent technical writing modules by Google that are free for everyone. They do not take long to complete and (aside from the confusion between acronyms and initialisms) are spot on. You can find the overview here with links to the two main modules.
A lot of you are shut in for the duration of the Covid-19 outbreak anyway so you have no reason not to at least have a look.