From LSWiki

Ringwielders: Totally Not At All Like Those Guys from That One Book.

Starting out

Starting as a Level 1 RW: One Does Not Simply Walk into Yevath to Hand Ahrikol a Job Application

Don't fucking do it. You'll have shit for trainers and won't know the first thing to do to not be killing rats in the sewers for the next 20 levels. Plus, your ring will suck for ages and you'll end up an incel or some shit. Just stop.

Okay, but I really want to be a Ringwielder

Be something else first. Go see the world. Ahrikol needs you to have at least 30 quest points anyhow (or 60 for goblinoids because the world fucking hates you and you should reroll as something better), so go get some training under your belt in a guild that doesn't have awful trainers and minimal significant opportunities for ticking skills below certain thresholds. Here are some suggestions:

How I Spent My Summer, or: 10 Things to Do before Pledging Your Eternal Fealty to a Dark Lord.

Joining Up: I'm Just a Girl, Standing in front of a Boy, Asking Him to Give Me Unlimited Power

Getting Ready for the Worst Mistake of Your Life

Initial Rune Choice: A Primer; You're a Moron and You Should Feel Bad, but That's Okay, Too

Why Are You Hitting Yourself? Phaethon Ringwielders and Other Stupid Ideas

The Peter Principle: Surviving as a Cog in Ahrikol's Middle Management

Would You Like That with Extra Cheese? Lux Options for Ringwielders