Yes, I'll gladly explain. Much of this community is extremely egotistical, so I'll explain this myself.
First of all, practice makes perfect. Spend lots of time with ROBLOX Studio building, and you'll become better over time. You'll learn new things about the building experience; such as properties, meshes, CFraming, etc.
As well, if you want to make a good quality game, scripting is usually a priority.
Don't use free models. If you use them, just use them for testing. No one will like your game if you make it with free models.
There's many groups such as "Lua Learners" in ROBLOX, that dedicate time into teaching people Lua scripting. I suggest looking into it.
~{An Intellectual In Love With Bacon}~ |