So you're looking to learn a little bit of Pine?
First off, you are going to want to bookmark this link right here: https://www.tradingview.com/study-script-reference/.
The Pine Script Language Reference Manual is likely going to be your new favourite bookmark. Most of the things you're probably already wondering "how will I do that" are likely already a built-in variable or function.
Second, you're going to want to hit up the Tradingview wiki and checkout the Pine Script Tutorial Section. It is not necessary to read everything in here right away, however, you are going to want to make it one of your first reference points when looking for information regarding Pine.
Third, you're going to want to join our slack channel, and start watching the Pine Script Editor chat on TradingView. There are also some good Pine script videos on Youtube that touch on all aspect of the process from building a strategy in Pine to automating a strategy via Autoview.