New in Seoul

Hi all,
Warm greeting from me, Cheryl, a newbie in Seoul.
I am moving here to start new with my boyfriend who is a Korean.
I have made all possible moves and decisions to move here and hoping to build a new family with him.
I am feeling everything new and strange at times that I am not sure where and how to start although I have been here for a few times before. Things seem to be very different when planning to stay for good here compared to just a short vacation.
It would be very much appreciated if dear members here who can advise me on this and I am hoping I can adapt well from time to time.
The most critical hassle for me is I can't speak Korean and it has been tough for me. I am planning to go for Korean language course as soon as possible.
Thank you all for valuable advice :)
Cheryl