I’m sitting on about 70 gold that I’ve made just from crafting. dig through your craft, find something that makes money, and make that. Also, try not to undercut people, sharing the market for an item with 2/3 people isn’t bad, and not worth it to ruin everyone’s profits.
Personally I do a set of level 50 rare armor making ~10s a piece when I buy all the mats, and that’s after the TP fee.
You can craft up 4-5 sets, throw them on TP and go farm while they sell to make double to gold.
Edit: That 70 gold is after powering 2 crafts to 400, not sure why/how people can’t do this. There’s profit to be made, just look for it.