need help translating these sentences please

Hi. I am new to this forum. I will be visiting Japan for a course in June. I want to be polite to my sensei when I meet him. Was wondering if someone could please help me translate the following?: 1. "after you kindly allowed me to visit your center, i started learning Japanese" 2. "my Japanese is not good, please be patient with me, & correct me if I am wrong" 3. "sorry to impose on you & your colleagues" 4. "thank you for teaching me" 5. if i get complemented, how do i say, "you are very kind. I have much to learn" 6. "some day, please visit my country. I will take care of you & your family" 7. "my friend taught me Japanese" Sorry, I know it's a lot to ask, but I'm a total beginner at this & the place I am visiting is quite off the beaten track - I suspect there won't be too many English-speakers there. Thanks very much!! John

I'm not that of an expert on formal Japanese, but I hope these will help you: 1.)先生のセンターをご拝見にさせて頂いたあとは、日本語の勉強を始めました Sensei no centa- wo gohaiken ni sasete itadaita ato wa, nihongo no benyou wo hajimemashita. (I don't quite understand the context. You started to learn japanese after he ALLOWED you to visit his center, or after you HAVE ACTUALLY VISITED the center ?) 2.)私の日本語は上手じゃありませんが、よろしくお願いします。 Watakusi no nihongo wa jouzu ja arimasenga, yoroshiku onegai shimasu. (Side note: It's not that of a good idea to say: please correct me if I am wrong. It it understood from the initial sentence). 3.)ご迷惑をかけてすみませんでした Gomeiwaku wo kakete, sumimasen deshita 4.)教えて頂いてどうもありがとうございました Oshiete itadaite doumo arigatou gozaimashita 5.)とても親切な人ですね。私はまだまだ経験の浅い者です Totemo shinsetsuna hito desu ne. Watakushi wa mada mada keiken no asai mono desu. 6.)いつか私の国を訪ねてに成ったら、私が面倒を見ます Itsuka watashi no kuni wo tazunete ni nattara, watashi ga mendou wo mimasu. (I'm not really sure if the second part is quite correct or better said, I'm not sure if it's formal) 7.)友人が私に日本語を教えてくれました Yuujin ga watashi ni nihongo wo oshiete kuremashita.

Koddo Sensei, thank you very much! The context in Point number 1 is that I started to learn japanese after he ALLOWED me to visit his center much appreciated john

Oh, Sensei is a bit too much for me :), I'm just another Japanese enthusiast that can be found anywhere on the internet... If that's the case, then the first sentence that I wrote is correct :D. Glad it helped