There are a few things that could be causing your Roblox avatar to look like a noob. One possibility is that you have not upgraded your account in a while, which can make your avatar look outdated. Another possibility is that you have not put in the time and effort to make your avatar look good. If you want to make sure that your Roblox avatar looks its best, you should try out different clothing, accessories, and hairstyles to see what looks best on you.