Nice start for a beginner :) I liked your story, it was quite amusing :'D I have to say that I think you got some nice ideas regarding concepts on recreational space for example, but it seems that at parts you lost a bit of your motivation and patience and built rather in a rush.
My advice is to start small. Take one idea and focus on it. Use some more mods, too, they will surely enable you to realize the creations of your mind ;)
Also, it is always worth to look at the city journals of other players, e.g. the ones by @Inan :) Keep it up!