I'm an artist by trade and I can tell you with all honesty that yes, you WILL get better. It is clear that you already have a good eye for form.
Art can be frustrating. But if you want to grow as an artist, you have to do some boring stuff, first! I recommend Drawing on the Right Side of the Brain, as well as any book by Andrew Loomis if you can get your hands on it. Draw what you see, and draw boring things like balls and cubed objects. Draw what you SEE, not what you think you see.
Do not give up. It takes years, but it's truly worth the effort. Feel free to PM me at any time if you want some advice or encouragement. I love seeing budding new artists and especially those with clear talent like you have! :)