[Shadowulf]

ummm just back to the first post,
well, mame has already corrected your misuse of はじめる
i should tell you that
はじめる and はじまる, although both meaning "to start" are used in different ways
generally i think of it along the lines of:
はじめる- to start, but can be controlled/caused by oneself
i.e. 試合を始めましょう - lets start the game.
これから練習始めます- we're starting practice now

while, はじまる- to start, but isnt actually 'done' by a person
i.e. 春休みが始まった- Spring break has started
雨が降り始まった- It started to rain

分かりますか？ well you shouldnt strictly go by those um... 'definitions'
but in almost every case of はじまる vs まじめる ive faced in my years of learning japanese, they call under those categories, cant think of any exceptions at the moment



AANNYYYWAY enough of that lol

ill just do what i can for now
hopefully mame or another of the pros can come along and help
need to be helping out otherwise i too will get rusty lol

ummm i guess you could do:
日本人の友達と話したんだ → 日本の友達と話した, but cant really explain, just how i feel about the sentence lol ><

「明日は、仕事があって、家に帰って 、二つ目の仕事に行く」.... this sentence sort of sounds broken to me
if i was to write the sentence, mine would look like:
明日、仕事が終わったら家に帰って、また他の仕事に行 く。
ummmm oh and if these are part time jobs youre talking about, instead of 仕事, you should use アルバイト (or shortened: バイト)
oh and yeh i feel real rusty now haha, after writing that sentence i sort of feel that it sounds weird to me as well xD
*stabs self* lol

anyway
「今週、あまりお金が ない」 → 「今週、あまり金(が）ない」
seeing as you're usually typing in informal-ish, you dont really need that お before 金, and が id say is optional
for picky corrections (following the steps of mame, and yeah i think its a good way to get rid of your minor but bad habits.... and they wont be minor after some time imo)

今週は、六日も働く → 今週は六日も働く
来週が楽しみにだ → 来週が楽しみだ　(or 来週が楽しみにしてる)
お金持ちになる → again the お isnt neccessary

for that last bit, you could also write:
来週、金持ちになるのに楽しみ（にしてる） or 来週、金持ちになる事に楽しみ(にしてる）

thats just my contribution for now, will need some sleep =]
hope mame comes and corrects anything i may have missed
and hopefully all the mistakes i may have made D: