AP allow you for everything, at cost of a slow HP growing. Critical if you start at support for conquest (avoid front) and spam combos. TP up isn't a big deal unless you are spending a lot of AP and heavy combos (each refill via exploring is 40TP and rates are good unlike BP), but BP is a bit more useful due to rates (give only 20 via exploring, harder to refill and more benefit from bottles).
I recommend to focus on gathering before battles (AP/bells/recovery), until you're geared enough to change stats.
About raids i started with defense because weak decks doesn't bring the complete combo at certain levels. Again, change stats when you're geared.
Give one F2P game to a Korean: He will turn it in a P2W (pay to win)
Give one F2P to an American: He will turn it in a P2F (Pay to fail)
Nutaku ID: 454836