@Amanda Cadena first off... congrats on starting investing at your age! I'm gonna keep it short... wholesaling is a great way to start. Especially if you don't have the cash on hand. Focus on that. Don't get side tracked. Believe me it's easy as real estate gives you so many different options to invest. Forget about expensive courses and mentorship. Wholesaling it's not that difficult. All you need to do is find distressed properties. It's all marketing and talking to people.
You can set up an LLC if you want but that won't help you get the properties in contract. Distressed properties have distressed owners. They want to talk to a person, somebody who can understand their situation and help them out, not a heartless business (LLC). That's why I would advise against placing your LLC name on business cards.
Forget about website. It's ok if you have it but that again won't help you much. I'm in Los Angeles too. I talk to people who own their homes for 20-30 years. These people won't go to your website to get more info. They often don't want to even talk on the phone. Instead of talking on the phone for hours try to make appointment as soon as possible. Friendly face / in person contact is the best way to come up with win-win solution.
Read a few books on wholesaling to get an idea how to structure a deal and put things on the paper. You'll find plenty of marketing ideas in there. Pick 3-4 of them and start them simultaneously. Most importantly do all these things as soon as possible. Don't wait around for months or years to get things going. Read. Read. Read. Bigger Pockets is a great resource. Don't make lack of knowledge stop you from moving forward. You'll learn as you go.
I guess I didn't make it that short... :P
Good luck Amanda!