So to answer the questions-
No I didn't jungle. I don't have the runes, masteries, glyphs, etc. to jungle as effectively as I'd like to. At the very least, I typically don't enter jungle with anyone but Worwick until like 3 or so.
I just wanted to get as much gold as freaking possible out of fear that my team would throw and feed, as that's been my past 7 losses X.x. I wasn't too far off, someone in top with me dies in the first couple minutes and quits. Luckily, I solo'd top and went 3-0, took to empty lanes, MF ganked for me once making me 4-0, and I really took off from that point.
In terms of my build: I just go to recommended and make judgement calls on if I want to hurt more, or stay more alive.
When I'm doing ranked, I'll stick to one build. But I've still only played like 9 champions, I want to explore more.