Welcome, your majesty
I think that everyone here, even those who have been involved in photography for decades, are constantly struggling to make their finished prints match the image that they see in their mind. Photography is a fascinating and rewarding form of creative expression that will challenge you all of your life. The more you learn, the more you realize that you don't know.
APUG is a great resource with many very accomplished creative photographers with a huge variety of backgrounds, interests and expertise. Just lurking here will expose you to a wealth of all aspects of photographic information. Questions almost always receive quick, helpul responses.
As far as not creating "Art" with a $5 disposable, a lot of talented photographers are doing some beautifully creative things with $10 Holga cameras.