I tried the three finger A chord but couldn't get it. Then while watching some music videos, i saw someone do the A chord bared. So I copied it and ever since then I got used to it. I still teach my nieces the three finger way first, then if they can't do it Ill show them the bared way.

The pic BTW was from my iPhone. I took it as soon as I saw this post. I hope this helps the OP though....