For the canvas, try using the R17 wheel and make sure you're using proper gear.

The first thing to do for crafting is get the right crafting gear. For a weaver, that's a robe, but since you're also doing leatherworking you may want to go with a doublet vest and some +magcraft headgear, maybe a scarf or spectacles, then halfgloves, slops, thighboots, tool belt for the rest. Also make sure you have the best tool for your rank equipped, better if it's HQ.

With your gear in place, look for recipes that are 5-7 ranks above you on ffxiv.yg.com that you can easily get the materials for. Do those. If you're feeling confident you can even try things up to 10 ranks above you. You should be able to get 500SP a synth by doing this, which will help you rank up quickly.