Glad things went well on your first trip!
As to the tarp, Veto65 has my method of doing that. I usually unfurl the tarp and figure out where my stakes are going to have to be, plant them, then refurl the tarp in its Velcro ties (similar to a snakeskin). It stays out of the way and is ready to go if rain starts dropping on me at four AM.
The other option, if you do expect rain during the evening, is to put the tarp in "porch mode" with a view on the side that the porch is. Take your hiking poles (if you use them) or a pair of fallen branches about 5' long (if you don't) and wrap the guylines on that side around the ends before going down to the stakes. This opens up one side of the tarp, allowing you to see everything on that side easily from the hammock.
With the porch mode option, it's helpful to have either a tautline hitch tied into the lines or a linelock or some kind of quickly adjustable tension system for them; this allows you to batten down the tarp into "storm mode" very quickly if the wind picks up and starts blowing rain under the porch side.
Hope it helps!