Understanding my language's grammer is harder than my think I thought.

I'm so glad to help foreigners studying Korean. And I willing to help anytime for everyone learning Korean.I will gladly offer help to anyone learning Korean at anytime. (This is the correct word order. "And" in the beginning is unneccessary. And even though 모든 분들 literaly translates to "everyone," in this sentence, "anyone" sounds better.)Though I contact skype, kakao with themWhile communicating with people via/using Skype or Kakao, I get a lot of questions about Korean grammer particle. The problem is, I'm not a schoolboy onfrom elementary school to high school. So I don't know wellmy language's grammer of my languagewell! Therefore("So" sounds better) I'll study itsKorean grammer and I hope that helping to them make betterto become a little more helpful to them! And Iit's not only for helping, but also Iit's also(even thought you didn't write "also" in the Korean version, it does sound better to use it) the way ofthat I love my language! haha. :)

I tried to fix it exactly based on the Korean while still making it seem natural!

[Polite Version]
저는 한국어를 공부하시는 외국인들을 도와드리는 것이 너무 기쁩니다. 그리고 저는 언제든지 기꺼이 한국어를 공부하는 모든 분들께 도움을 드립니다. 제가 그들과 Skype나 Kakao로 연락하면서, 저는 한국어 문법에 관해 많은 질문들을 받습니다. 문제는, 저는 초등학생부터 고등학생까지 모범생이 아니었다는 겁니다. 그래서 저는 제 언어의 문법을 잘 알지 못합니다! 그러므로 저는 한국어 문법을 공부할 것이고 그들에게 좀 더 도움이 되길 희망합니다! 그리고 도와주는 것 뿐만이 아니라, 제 언어를 사랑하는 방법이겠죠! 하하. :)

Alternative:

Understanding my Language's Grammar is Harder than I thought!

I'm more than happy to foreigners who are studying Korean. Moreover, I am willing to hlep them at any time! I get lots of messages about various aspects of Korean grammar thought programmes like Skype. However, because I'm not a teacher, I often donm't know why things are the way there are, I know know what is right and what isn't. Therefore, I plan to study my own language's grammar in order to better help foreigners with their studies and to help me understand my own language in more depth.

Your post was very well written! Well done! :)