First of all, welcome!

It was certainly interesting reading a ...romaji-ised form of korean (for lack of a better term)! Seeing as you wrote it in that form, am I right in assuming you haven't completely learnt the written form yet? If not, you should probably start with that, since hangul is widely recognised for being both systematic and intuitive, making it easier for new students!

A point worth noting is 한국어(hanguk-eo) is the spoken language, whilst 한글(hangul) is the korean written form. (Forgive me if you already know this!)

But moving on to what you wrote...

I couldn't for the life of me get my head around "gusahaji moshaneun" ...perhaps you can help me with that since its probably just me not reading it right :S

But apart from that, I think it was perfect, except maybe the spelling of hanguk, which most people end with a "k" as opposed to a "g" (buuuut lets not be pedantic about the English spelling of korean :D)

New here :) ~~

Annyeonghaseyo. 안녕하세요.

Mugande-ibnida. 무간데 입니다.
naneun hangug-eoleul gusahaji moshaneun 나는 한국어를 잘 구사하지 못하지만 
...hangugo jogeum halsu issoyeo (lol not really... if you understood what i said ;D ) 한국어 조금 할수 있어요
As you can tell i am teaching myself Korean/Hangul. haha 당신이 한국어를 가르쳐 주세요

I am a 17 yr old girl who got into kpop and korean culture along with other asian cultures, such as japanese and chinese culture, about 5 years ago but has only just decided to take this thing about learning the korean language seriously, as i have tried but always struggled. I've joined so many sites and used apps to help and now i am here because i saw one of my friends join it too~

If there are any others out there like me i would appreciate the help from anyone also learning and who knows the language :D
Lets be friends~