Hearthpwn

Someone linked this in the Discord channel. It might be useful for you :-)
(If you havent read it already)

https://disguisedtoast.com/articles/261-new-and-beginner-players

Quote from sandwoman >>

Hi all! I'm new, as of April, anyway.
And, I'm not sure where to start.
First of all, can I change my display name? It got rather frustrating...it kept telling me names were unavailable even when I tried random mashed up strings *shrug* and so I reloaded and well here I am :(

I need to learn how to build decks from the cards I have, specifically for the frozen throne (more later). I've been searching but basically, I think some of it is beyond me. I've been reading and watching basic videos on how to play (I search, my friend sends me stuff and gives me pointers) and I play his decks fair to middling but I need to learn to manage with what I have, and you know build decks for adventures and brawls! :)

Help?

PS I'm not totally sure this is the best forum to post this either. Maybe deck building? But general pointers... 

 Welcome (User currently known as Sandwoman)! :-)

Regarding changing your username, please follow the directions the others have provided - in the meantime, I will follow up to check this is still being done as before (though I can't see why not :-P ).

In terms of getting to know the game and how to play / build decks etc, it soudns like you have started off on the right track; watching videos about the game will help you begin to understand how to play and how everything works. 
Everyone will have different suggestions in terms of who to watch, but my own suggestions are to look for videos by Kibler, Trump (not the President lol), and maybe Disguised Toast (though you will need to ignore the ego-overload on his videos ^_^ ).
In terms of Frozen Throne decks, you may need to do a bit of searching for older videos (in their catalogue) because FT is pretty far out of the current meta now and there are very few Wild streams that I know of (perhaps others can suggest some).

Alternatively you can also ask for some deck building advice here and there may be some users willing to offer help:
https://www.hearthpwn.com/forums/hearthstone-general/general-deck-building

Good luck!