When I started I wanted to be a manuer.
I needed to fight to get the first ingredients, and I soon found out that fighting was easier to level, so I fought to get overall experience faster.
At that time I mostly used cooked meat when mixing, so I started making FEs. And found out that I could get money from them, and EFEs (much more money! - now I regret selling my first EFE, lol). Of course it involved harvesting.
As I was fighting, I wanted to train magic so that I can heal myself. And I wanted to make my essences myself, so I trained alchemy harder.
Let's sum up: manufacturing, fighting, harvesting, alchemy, magic.
Cooldown had been introduced, and I was mixing stuff that needed more food, so I thought drinking potions of feasting would be better than eating cooked meat. So I started training potion. I became bored and stopped for a while. But finally I found out I could get money from SRs, so I started again.
As I became better at manufacturing, I wanted to be able to make glowy swords. So I needed to get magic nexus.
I thought it was bad to have a magic nexus 5 and rarley using it. So I started training crafting. And found I could get money that way too
When engineering was introduced, I tried it. But until we can get money from it, I won't train it much.
As you can see, I'm a real greedy dwarf
What didn't I mention? Summoning... I barely trained it, I'm not interested in spending pickpoints in animal nexus.