1: Get Atleast 1000+ Journal Points.
2: Rank Alchemy from now on. Start with Watercannon to 1. and Alchemy Mastery towards Rank 2, then rank another alchemy skill. Like for earth, i did Barrier Spikes for structure requirements. Just keep raising alchemy. Dont be in a rush. Eventually you will only want RA for its stance and success rates after a while, depending if you go to Cressdia in G13.
3: Ranking Watercannon to 1 with RA uniform and title, make watercannon really strong, until you start using Flame Burst, Lifedrain and Heatbuster. Which shouldnt be for a long long while.
Speaking of that, get life drain to at least r9, Life drain is probably the cheapest alchemy attack there is, it can save your butt while doing beast damage that bypasses any sort of passive defenses. I don't know why people want golem nefed and not this. Its very useful on monsters like Red/Blue ghosts in Peaca.