I wanted to send out some positive vibes to those that want to be a photographer! You just picked up your first camera, and you're ready to get out there and learn. Good on you! Don't ever, EVER stop that thirst for knowledge and personal growth. We all have something to learn new. It's good not to go into the industry completely blind, though.
Learn your camera.
That new camera you just bought is a high tech piece of equipment. You need to learn it. I can't tell you how many problems could have been solved for me if I had only known my camera better.
Time for the other aspects of photography!
Now it's time to learn other things about photography, like lighting, leading lines, rule of thirds. There is so much more as well! All of this can effect how your photo looks.
Practice makes perfect!
It really doesn't matter what you're taking photos of at this point, the point is to start taking photos! Knowing what settings your camera has is great, and now you need to put them to use. Practice getting your focus where you actually want it. See what different apertures do to a photo, or ISO, or your shutter speed.
Get a mentor!
Mentors are good to have. When you have a question and you can't find the answer, they're the best for information! You can find mentors locally around you or even on Facebook. Just makes sure your mentor(s) are very positive people! Your mentor should encourage you, not discourage you. That's not to say that they shouldn't be honest. If you ask them how your image looks, they should be truthful. Don't confuse their constructive criticism with being negative.
Get thick skin.
So, I just mentioned constructive criticism from mentors. This is so important to you and your art. You can't improve if you don't ask what might be wrong. Sometimes people's CC can hurt our feelings. Our art is part of ourselves, so when someone says something we don't like we tend to get our feelings hurt. People giving CC aren't trying to be mean, though, at least not most of the time.
Learning business is just as important as actually taking good photos, especially if you're going to take your photography further than just a hobby. You'll notice that other photographers that are succeeding financially in this industry are doing so because they know business. They're usually very customer service oriented and are VERY good at marketing. Not to mention very confident.
This isn't all there is to photography, obviously. These are some things I just wish I would have had a grasp on when I very first started out. I really think the most important thing is that you're doing this because you love what you do. Passion is what drives us; fear is what holds us back.