Thanks for all the tips! I now have 323 gathering and 324 perception.
I think I'm going to use IV materia mostly on the accessories untill I can mine HQ Umbral Rocks.

So melding untill I get these stats from Lyzern: 353 Gather 332 Preception.
Could this be a good start? Maybe use food to get better stats for the HQ mining. And after I've done that meld further for the 2-3 stars rocks..?