Don’t bother with the cert if it’s not your job, but at least look into CCNA Routing and Switching. There are tons of courses available, both in person and online, as well as numerous YouTube videos on the subject.
See if your local library or community college has an adult education center that provides a course. At some point, you will need to learn subnetting, which is just math, but practice makes perfect, and your life is easier if you have it committed to memory.
Proper written work is still one of the most effective ways to do this.
When are you adding the bok choy to your stir fry? I’d wager you’re over cooking it; try adding it much later to the cooking process. It should only take a minute or two at most to cook.
The greens are also quite bitter, so possibly don’t use all of the leaf.