Have you looked at the RMXP help manual yet? A lot of good references there.
If you're not too familiar with programming in general, then learning RGSS will be hard. Especially, if you don't know your way around Ruby. Coding can't be taught in a day (well I think it took Trickster like 10 hours, but he's a lover of the Pandas, so special gifts are endowned to him). If you're looking for a scripting made easy response, you won't find it.