Even entry level kits are suprisingly good. Go out and use it now - this will help you figure out what (and how) you like to shoot, which will in turn help you make decisions in the future regarding buying lenses, features you want when you eventually replace this camera body, etc.
When you take a bad photograph, sit down and try to figure out what factors led to that. A lot of times people will blame the equipment when it's really user error. You can learn as much or more from a bad photo as you can from a good one, IMO.
Have fun, and don't take it too seriously!