As mentioned, it's hard to give you specific advice without seeing you skate, but there are some very common mistakes that beginners make.
First is they don't bend their knees enough and get down into that deep crouch. It can be a tough thing to overcome, because it's a bit of an unnatural pose to hold for long periods. But this impacts almost everything you do as a hockey player.
If you don't bend your knees enough, it shortens your stride, so you're slower. It raises your center of gravity so your less steady when you turn and try to maneuver and it makes you easier to knock over. It makes it harder for you to flex your stick, reducing the power of your shot. It makes it so you'll tend to use a stick that may be too long for you, affecting your stickhandling.
Second, develop your outside edges. If you don't learn how to use your outside edges, it pretty much cuts your potential in half because you're only using half the tools available to you.
The proper crouch and developing your outside edges go hand-in-hand. Unfortunately, developing your outside edge can be tough. Like the crouch, this affects all parts of your game from balance to shooting to speed.
Lastly don't rush things. Walk before you run. Start with the basics, drill those in before moving on to the advanced stuff. I see so many people at the rink who are just starting off, and they try to do advanced drills and movements when they can barely even make a proper turn. It doesn't help. In fact, IMHO, it hurts more than it helps because they just end up doing a half-assed version of the drill, reinforcing improper technique.
Short story. A few years ago I got sick. The end result of that sickness made it so I could barely even stand on my skates let alone take full strides.
Any ways, in terms of skating I was pretty much back at square one and had to teach myself how to skate again. I started from the basics and slowly started to regain my abilities, and at the same time, work on eliminating some of my old bad habits.
But at times I was impatient and tried to speed things up before I was ready and tried to jump into advanced drills that I just didn't have the strength to do properly. I mean after all, I wasn't really a noob. But I just ended up wasting my time.
I learned that the simplest drills are often the most effective, and that putting more focus and effort into the basics did me far more good than a lot of the fancy advanced stuff. I found the degree of difficulty in doing the basic drills was directly proportional to the speed in which I tried to do them.
So some things were quite easy to do if I did them slow, but once I tried to do them at game speed, they weren't so easy.
Youtube is a great resource for information and drills. I found it helped me quite a lot.
Any ways, I'll stop now before I write a novel.