First of all, welcome to the game!

Second of all, focus on power and don't, and I mean DON'T, rush level. That's the dumbest thing you can do because you'll end up being a high-level-low-power player which will be rekted by low level players (and will cost ya on Sage World Battlefield as low and high levels with more BP than you won't let you breathe). What's important here is balance, try giving priority to Battle Points but don't stay level 10 forever. Getting to the 60-70 range is really good as you have a lot more ways to power up than staying on level 20-30.

This is an advice from a guy who's level 69 with almost 30k of power who can rekt players until level 84 if that's a valid argument

(Also, try saving refines for the "refine rebate event" as it will be easier to refine level up your tools and gain a good power boost)

Eish bro, chill.