Was ist der Unterschied zwischen "her" and "herber" und "hier" und "hierorts" und "hierhin" und "hin",
bitte ?Du kannst auch einfach Beispielsätze geben.

@Chechina
"hin" and "her" are relative to the speaker's position. They are also messy and used inconsistently in a lot of cases...but more on that later on.
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hin ≈ starting at the speaker's position and moving away from it
(≈ an arrow starting at the speaker's position pointing away or towards something.
≈ "leaving")

her ≈ starting somewhere else and approaching the speaker's position
(≈ an arrow starting somewhere else pointing towards the speaker.
≈ "arriving")
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I will use
hinein <> herein
hinaus <> heraus
to explain the difference.

Example: Anna is standing inside the house. Ben is standing outside in the garden. Anna is looking out of the window.

From all perspectives/POVs Anna is looking out of the house.
=>always correct: raus ( rein/raus do not make/care about the "hin/her" difference)
=> either : "hinaus" or "heraus"

From Anna's POV: Her gaze is "leaving her"/ pointing away.
=> Sie guckt aus dem Fensrer hinaus.

From Ben's POV: Her gaze is directed toward him/ "arriving"
=> Sie guckt aus dem Fenster heraus.
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hierhin = (to) here - starting from me
hierher = (to) here - starting from you/somewhere else.
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If this already seems convoluted and confusing to you, then I have good news and bad news.

bad news: It is not only confusing, but - as I mentioned before - also rather chaotic/inconsistent.

good news: In many cases it does not matter which you use, BECAUSE it is inconsistent.
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Why is it inconsistent?
Mainly for two reasons:

1) There are no rules for how to use it in combination with the future or past.

Example: I am in the garden. I SPEAK about going inside of the house and looking out of the window.

Question: Should I take current-me's POV and say "heraus" or future-me's POV and say "hinaus" ?
Answer: Nobody knows, nobody cares. Choose whichever you want.
- - - - - -
2) I can assume the POV of someone else (even the POV of a non-existant observer). If I want to be nice to you, I can use your POV, so that you don't have to "convert" the hin and her words.

I will use @lukasehrlich's example for this one:

Komm hierher <> Komm hierhin
"Komm hierher" uses the speaker's POV: The listener is approaching the speaker FROM somewhere else.

"Komm hierhin" uses the listener's POV: the listener is coming TO the speaker
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If I can just use someone else's POV anyway, is there even a difference at all?

Yes. there are cases where there is a difference (mainly with verbs using hin or her as a prefix):

For example:
hinfallen = to fall down

The falling part always starts from the person that falls.
You cannot fall from the ground's POV.

There are also words that (also) carry a non literal meaning.
herstellen = to produce
hinschmeißen = to give up
And only these specific versions carry that meaning, you cannot exhange them.
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...And now you know how Einstein could come up with his theory of relativity. He was practising his entire life! 😁

But in all seriousness: Don't stress about it.

the quick & dirty rules are:
1) if it is a verb: be careful, there could be a difference.
2) if it has something to do with locations/directions: do whatever you want.

It is definitely not worth spending a lot of time trying to understand hin&her perfectly, since the difference doesn't matter most of the time.