Everyone said how hard skilling up would be...I never got it. Even back with abyssea people would whine about 'you will ruin your skills'
1) get 99
2) get spark gear for + skill gain
3) get moogle/sakura for + skill gain
4) go to a 99 gov place and get + skill gain prowess
5) cap all skills in no time
Skills have always been faster to level when your job level (and thus skill cap) is higher. I realized this quickly when I was new back in 2008-2009. However, you usually have to go slumming around in low-level areas first to get them to medium levels. With combat skills you can't skill up if you whiff it.
I got really good at skilling up in campaign battles back when you could only get them if you didn't
get tags and would have to suffer full XP loss if you fucķed up. I learned a lot about mob hate by doing campaign to level my first job solo... which was WHM from the low 30s once I could cast reraise weakened.
A few months ago I started burning sparks to skill up all those magic skills that take forever. I got Enhancing, Enfeebling, and Summoning first because they were the most infamous ones, and Blue Magic because I was already almost capped. Then the throwing/archery skills. I'm saving main weapons for the uragnites, though. (With Kupipi, Joachim, and Sakura you can go almost completely AFK.) Out of the 36 skills, I now have 21 capped, and two more that were capped before last month's update.
It bugs me when I see someone (usually not a new player) blasting obvious skill up spells IN TOWN when they should just burn the đamn sparks already if they care that much.