What Do Next?

[Bixby]

Get to max rank in your GC if you haven't, and unlock Wanderer's Palace and Amdapor Keep. (You've also got Pharos Sirius and Lost City of Amdapor to unlock according to your list.)

I'd suggest either getting your GC weapon or buying a weapon off the market boards (depending on your funds). There are weapon drops on the HM dungeons and primals, but those are a matter of luck. GC seals are not that hard to come by, so the GC weapon is an easy upgrade to starter gear.

From there, it's kind of a matter of just taking things on in the order of their minimum iLevel. You could probably get through the Chimera and Hydra parts of the relic quest as a DPS with the gear you have now, since a good chunk of overgeared players are going to be in there with you thanks to Trial Roulette.

IMO, it's something roughly like WP and AK --> Ifrit HM --> CT (only because you can blend into the crowd so much) --> Copperbell/Haukke/Pharos Sirius HM --> Moggle Mog HM/Garuda HM --> Halatali/Brayflox/Lost City HM --> Titan HM --> Ultima HM. That's the order of difficulty, IMO, not the order of iLevel (Moggle Mog drops slightly better weapons than Garuda, but IMO, they're the same-ish difficulty).

Grab whatever gear you can along the way, upgrade via Myth tokens when it seems like a good idea, work on your relic as you can. Once you unlock the end game roulettes, do those to supplement your tokens. Low Level roulette gives bonus tokens if you're level 50, and story roulette as well; whether the time investment is worth it is up to you (personally, I save Low Level for classes I'm actually leveling, and can't stand story roulette anymore unless I'm really desperate for tomes). If you try something, and you're not getting it down, just grind something lower until you get some upgrades, then try again.