Hello /x/, I recently had someone come into my life who has

Honestly, you're better off just getting rid of said person from your life in muggle fashion. Magic is there, and is always an option, but if you're a complete newbie, it's going to take some practice. Casting a spell takes patience and knowledge of the basics. You won't need any expensive equipment or a full moon.

If you look elsewhere on /x/, you can find the basics of spellworking. If you want a book on the subject, I'd suggest "Energy Essentials for Witches and Spellcasters" by Mya Om.

I'll answer your other questions now.

Benefit: You're discreetly dealing with a problem.

Drawbacks: It's not as easy as just lighting a candle and chanting some words. That's fluff. Once you've learned the basics, though, none. Unless you choose to shackle yourself with karma or the Threefold Law.

What you should be aware of: Spells take the path of least resistance. You may get your end result, but the path the spell takes to achieve it may not be what you're hoping for.

What spell/hex: You should learn how to make your own.

How to cast a spell: See above.