I tried roblox studio i don't know how to make a script and a model.
Right-click on workspace, go to Insert Basic Object->Script or Insert Basic Object->Model
To make a script/model, simply right click on Workspace inside the Explorer, Insert Basic Object>Script
Same thing with model. If you can't do that, put this in the command bar (bottom of the studio)
Instance.new("Model", game.Workspace)