its a good first model nix. the more you practice using the tools the better you'll get, so dont worry about early models being bad cause practically all first models are bad cause people dont know how to use the tools well
thing you should challenge yourself on is to make it have a proper edge. it probably will take a while - if you're having trouble look up changing the center of manipulation/scaling/rotating, snapping, and scaling/rotating/translating along specific axes.
