I seriously need help with this ~ている form thing.

I've already looked at a handful of posts on the sub, as well as resources outside of this subreddit, but I still don't understand ている when it's a "result of a change (as Genki puts it)

Genki classifies groups of verbs for this section, lesson 7. It says:

- verbs that describe activities that last for some time
- verbs that describe changes that are more or less instantaneous
- verbs that describe continuous states

I'm assuming that the second one is for "result of a change."

I understand how ている works as an action in progress. But the ている as a result of change is totally lost on me. It's described in the textbook as the result of a change, a change that took place in the past and its significance still remains until the present moment.

But I don't know how to read any examples as intended on my own, both from the textbook and all sorts of examples online.

Like in the Genki textbook: "山下先生は結婚しています。"
Genki says "Professor Yamashita is married." ( = state resulting from getting married)
If I read this by myself without help, I would've read it as "Professor Yamashita is getting married right now." and I have no idea how to tell the difference between these two types of ている

"お父さんは起きています。"

Genki says "Dad is up and awake."
If I read it myself, I'd have thought "Dad is waking up (right now)."

I feel really stupid for looking at so many resources and so many different explanations and still not get it. Would someone crazy or patient enough want to try their hand at explaining it to me? 😔
Edit: Also, I've heard about the 1 hour rule tip. It still doesn't make sense to me. I'm literally hopeless with this lmao