This is the beginning of a long haul. Don't feel down if you don't yet see the end.
Consider how comfortable you are with the following issues:
A. The process of bringing functions from the pallette to the workspace?
B. The process of finding functions from the pallette?
C. The process of filling in values for function arguments (the white boxes)?
D. The process of choosing options to modify the workings of a function?
E. The notion of variables that you define
With this in mind, how could lab time best be spent to meet your needs? Also a general temperature reading: how do you feel right now about the prospect of programming?