Same here with the stay-at-home mom. I'm constantly busy even though I'm technically available all the time. I'm pretty sure you're on my friend's list on here, too! lol.
I'm also down for hanging out and chatting here or in game. I have a working schedule so I may not always be available when everyone else is. I don't know of any groups for specifically for over 18 though, but you generally get the idea of the thread by the tone of the replies.
As good practice, I would also delete friend codes unless I trade with them on a regular basis. I put off ACNL for some time due to work and has just recently bought the game to start. I'm a Nintendo fan and grew up with its consoles and games. I don't follow it blindly though. Nintendo has some flaws in the past that I don't support and would logically criticise.
Overall I like their content and play most of their big IP games like Mario, Zelda, Metriod, Star Fox etc. Surprisingly I can't seem to get into Splatoon - maybe shooters are not my type in general.
I'm 22! I've been playing since I was 11! I still love the original AC game and I invested many, many, many hours into it. I stopped playing so much when I was a teenager and as a result, CF and WW didn't receive as much play time, but I did own them! However, I've gotten into it again as a college student and have invested hours and hours into NL.
I do not really visit the forums anymore than like once a day, but I do frequent Brewster's Caf? and the gaming sections when a thread catches my eye. If you are like me and like the outdoors, classic rock, and video games, then we will get a long just fine!