You could spend hundreds of thousands of gil and level every other craft to 50 too.
Or just buy some gear off the market boards when you need it for 100 to 1000 gil.
There's no money to be made anymore crafting sadly. And i wish i realized this before i leveled everything to 50 too. There are a couple of items that are good money, but rarely sell. People level so fast now that a lot of gear is skipped, and even simple NQ alternatives off quests or leves usually are sufficient to get by instead of expensive HQ items from the Market Boards. You said it yourself, you find your gear pretty sad for level 36 but you had no issues leveling. And while everything you make that you gathered yourself (Get botanist/Miner to 50) is profit, the profit margins on that are terrible. You can buy a stack of 99 of any kind of ore for about 800 to 1500 gil. The time you spend on that could have been spend on running even something simple such as Castrum Meridium for 1500 gil off the final boss.Without the hassle of waiting for it to sell or people undercutting you.
Weaver is the only thing that can make some money, and that's only if you are lucky with mid-level mage and crafting gear that have no decent alternatives. And even then, with a market so saturated, the NQ piece is 300 gil and the HQ piece never sells unless you get super lucky. And that's not counting the people who just skip the gear entirely.
With the way the Developers made crafting worse than anything you can pick up from a dungeon there's not much you can do.
Lets face it, you can easily get a full set of Darklight armor in a day without much effort now, which is ilvl70 and you as a crafter can only make pieces up to about ilvl 55 or Rediculously expensive ilvl70 gear that is both outclassed by Darklight's stats and also never bought because the main ingredients even if farmed yourself are so expensive they have to be listed at atleast 70k now or they are a complete waste of time. No one is going to spend 70k for a single piece of gear if they could just as easily farm up a complete set for free in less than a day's time. I did a couple 20 minute Crystal Tower's (200 Philo each), Roulette CM (300 Philo) and i was back to 1300 Philo tomes in no time. Spend maybe three hours at most, and if i were buying Darklight gear, that would equal Three out of the Five main pieces already.
I take absolutely no pleasure in saying this, but frankly:
Crafting, by all intends and purposes, is DEAD in Final Fantasy XIV.
All that's left is people desperately trying to undercut by more than half trying to get rid of their build up stockpiles before the markets crash completely. Want to make money? Buy from market boards and sell to NPC. That's it.