What should I do?

[Saber]

Alright I've not used a guide ever while playing this game. I managed to get the weapons out of the behemoth cave, and I'm saving up SPP for the 300 killsight weapons. My goal is to do missions my second playthrough and get the 70,000 SPP needed for all the weapons.

My second playthrough is going to be All tasks + Expert Missions + Hidden dungeons. I feel like there is a lot to explore that I may or may not have tried. Gilgamesh is the holder of the ultimate weapons I believe. I fought him but got killed. Getting every Eidolion is going to be possible too.

So here is what is great that I find I want to master.

A. Chocobo Breeding!
B. Getting to level 99!
C. Own every item!
D. Max stats!
E. Kill every enemy!
F. See 100% of the areas!
G. Level up all magic to max!
H. Earn SPP!

Is there any easy ways to get these tasks done? I'm almost done with the 300 killsights. Only 30 hours on the game!

[Saber]

Main things I found,

Get 300 killsights with each character
Gather 800 Phantomas with each character
Do every Task while doing expert trials (saves time)
Always go to areas with a treasure icon on the map.
Level up to level 99

It also really helps if you sell monster items. Stuff like shards, tree sap, and bomb fragments are easy to find.