Patrick Stump's tweets

Fall Out Boy's Japan tour will start from tonight. According to the member's twitter, they're already in Japan.

Last night, Patrick Stump, the lead singer, tweeted that he was glad to come back to Japan, in Japanese! A fFew months ago, he mentioned on his twitter that he was learning Japanese. At that time I thought he just paid a lip service to Japanese fans, but his Japanese seems to be a little somewhat improved from that time since then. A fFew months ago he tweeted that he couldn't understand the meaning of "おはようございます",," but last night, he replied to Japanese fans, in Japanese, and asked if snow write is written like "雪" in kanji. His simple Japanese tweets are so cute that I can barely stand it. couldn't stand it. (Can I use "I can't stand it" in a positive way?) He mentioned that he had been learning Japanese using many apps. I also saw a lot of happy English tweets from Japanese fans (including me!) which contain grammatical errors. As I reading these tweets, I felt feel again that what is important about communication is to not to speak perfect language, but to sending your feelings, no matter the there are some mistakes.

I hope he will also speaks some Japanese at the concerts~ ( ˘ω˘ *)

Your grammar is very impressive, and the entry only had minor errors. 

First yellow highlight: In American usage, the comma is placed before the quotation mark; however in British usage, I believe that either way will be okay. 

Second yellow highlight: you can use "I can't stand it" in a positive way. For example, "she's so cute, I can't stand it." The "couldn't" that you used in your sentance can be replaced with "can't," this is the proper tense. 

とってもいいですよ！！