Building is not easy for every users, Nibble is trying to build and learn at his own pace, He just needs to stay calm and continue to keep trying, He could even try experimenting to gain new ways to build, For some users it can take awhile for them to improve, Infact for instance, Instead of criticizing him, Why don't you give him new building ideas without insulting him? Insulting might in some way mess up his building confidence and have a harder time, Actually give him a chance as if you look enough you can tell he is really trying to improve his
building skills.