Mon sport préfèreéré est le golf, j'aime le golf parce que c'est amusant et socconvivial.

favorite = préféré (past participle of "préférer")
"social" means "related to society"; something about the pleasure of being together is said to be "convivial"

Je'y joue au golf avec mes amis et ma famille. Mon golfeur favorite est Viktor Hovland.

y = au golf (replacing a phrase starting with "à", in order to avoid repetitions)
"favorite" is the feminine form

J'aime Viktor parce qu'il est de Norvège.

"parce qu'il est norvégien" would sound much better/idiomatic, but what you wrote isn't wrong

Le meuilleur golfeur de France est Matthieu Pavon.

<eu> stands where you hear /œ/

Le golf est un sport (qu'i est) énervant parfois, mais on continue parce que, 'on frappeait quelques bonneaux coups/quelques belles frappes.

"qui" is never shortened (unlike "que") => qui est
The simplest solution would be to drop the unnecessary relative pronoun, however

parce que+on => parce qu'on
There is never any comma betwenn "parce que" and the following word

I honestly don't know that sport enough to tell which would be the best/most common pick between "coups" or "frappes", but both are understandable

Je'ai commence le golfé l'année dernière.

Main past action of a text, focus on the fact it's achieved => j'ai commencé
I removed "le golf" to avoid repetitions

Je suis très contente de mes progrès au golf.

"content" is the feminine form
Same observation as above about repetitions

Hier, j'ai joueé au golf avec mon père et deux autres personnes.

"deux autres" without complement would imply "two other fathers"

Je suis joyeuse avec ma tourné'ai été/J'étais content de ma partie, mais pas les autres n'était pas joyeuse.

Past tense => j'ai été content (the imparfait would also work here)

glad, satisfied = content, satisfait
joyeux = merry, happy (both mean slightly different things)

"a game" in the sense "time between the beginning of a game and its end" is "une partie" in French

You can just say "mais pas les autres" to mean "the others weren't", you don't need to repeat everything