13? Just starting? I didn't start until I was an old man of 15.
You have a good basic sense and if you work at it, I think you will become a very good photographer. Another young lady on Y!A, Annafur, is 15 (I think) and she has steadily been improving by working at it. If you can find her images, many of them are extremely good. I can see the same happening for you.
I recommend that you get a good book on basic photography and work through that step-by-step. Understanding lighting, either as you find it, or as you create it, is central to photography. So is composition. They are treated as separate subjects, but they are very related and you will eventually blend them together.
As instantaneous as digital technology is, with all it's speed and flexibility, getting good at photography isn't fast. Some people learn faster than others, but nobody masters it overnight.
It looks like you may be off to a great start and I hope you keep going. If you can make contact with other young photographers that are good (like Annafur) and trade ideas, images and experiences, that would be great. I am always excited to see young photographers enter the field. Those of us who have been around for awhile need to leave things in good hands.
Tag! Your it!
Vance