I don't know how much confidence you had when you were younger, but you have to believe you will get some or all of it back, and maybe more. I had none to get back, and I am relaxed on the ice now. Just skate a lot, and enjoy it. Confidence comes in great part from your body and brain knowing you are doing something safe, and that comes with practice, correct technique, and familiarity.
I switch from figures on ice to inline skates with a banana rocker like a hockey skate. I'm no John Curry. You get used to switching, took me a couple of months of doing both every day/every other day.
I'm honestly pretty hopeless at stuff like this, it has been hard work and patience. If I can, anyone can.
Enjoy!