Welcome to this wonderful affliction called Photography. It will devour any free time you may have had in the past, and you will love every minute of it.
Like you, I am the "family photographer". I've never made the jump to being a pro because i like to shoot what I like to shoot, and my "real job" pays for my photography habit pretty well.
As for learning, use the link here and go to the amazon store and pick up the book "Understanding Exposure". You will learn a LOT from that book. I bought it aftering playing around for several years and it gave me new ways at looking at making pictures.
Another method I used was the course at NYIP (
New York Institute of Photography). While I never "finished" and turned in all the pictures to get my certificate, I did complete all the lessons and learned a LOT of the basics there. I don't know if they still work this way, but if you request their material and then don't respond in a couple of months, they used to send out a discount to take the courses at a cheaper price.
The other thing is to keep shooting. And if you post a picture for critique, be open to the words of those here. Most of them have been doing this a long time and they are good. Be prepared to know that your pictures may not be a "perfect" as your family members and friends tell you. :)
Bottom line, the more you shoot, and the more you listen to the critiques of others who you learn to respect, (you'll figure out the ones that really matter), the better you will become.
Again, welcome! I'm sure we all look forward to seeing you grow in the art!