Newcomer

Hello.every body (, everybody is one word) .I'm here for learning English (You can say either "for English learning" or "to learn English".) And (Do not need because every new sentence already means "and") recently I also want (decided) to learn Korean. At the same time, i can help you with Chinese. Have (Does) anybody want to make friends with me? I only have the Chinese communication tool (tools "since you are listing more than one tool) now. Such (, such (is not a new sentence but a just a continuing thought) as QQ and Wechat. I'm looking forward your message.

Hello, everybody. I'm here for English learning. Recently, I also decided to learn Korean. I can help you with Chinese. Does anybody want to make friends with me? I only have the Chinese communication tools, such as QQ and Wechat. I'm looking forward to your message.

I kept all of your sentence in the original format but some of your sentence should be combined.

For instance

Hello, everybody. I'm here for English learning; even though, I also decided to learn Korean. I can help anyone with Chinese who wants to make friends with me. I only have the Chinese communication tools, such as QQ and Wechat. I'm looking forward to your message.

Newcomer

Hello everybody. I'm here to learn English, and I would also like to learn Korean. At the same time, I can help you learn Chinese while you help me. Is there anyone that wants to be friends with me? I only have the Chinese communication tool now, such as QQ and Wechat. I'm looking forward to your messages.