Jy wys my hoe om die fout reg te stel.

In Afrikaans wys is a ditransitive verb, so it can take both a direct object (what is shown) and an indirect object (to whom it’s shown) without needing vir.
English: “to show me something”
Afrikaans: “jy wys my iets.”

When you use the infinitive construction om … te, you must split compound verbs so that te comes before the main verb:
• Without te: regstel (one word)
• With om … te: om reg te stel (two words around te).

1. Subject: Jy
2. Main verb: wys
3. Indirect object: my
4. Subordinating word: hoe
5. Infinitive clause: om
   • object (die fout) + split verb (reg te stel)
     This follows the pattern: Subject – Verb – (Indirect object) – Subordinate clause.

• jy — sounds like English “yai” ([jai])
• wys — like “vais” ([vais])
• om — short “om” ([ɔm])
• reg — rolled or tapped r, vowel like “eh”, ending in a guttural or [ɣ], so [rɛx] or [rɛɣ].

Yes. That version uses a finite verb in a relative clause rather than an infinitive:
Jy wys my hoe ek die fout regstel
= You show me how I correct the mistake.
Both sentences are correct; the original focuses on the infinitive action, the alternative on your personal subject performing it.