Spend the free time (however little it is) going to meetup.com (and other) real estate gatherings in your area for multifamily owners (to purchase you may need to partner with an existing owner as your deal sponsor with cash, net worth and experience to qualify for the loan).You're not going to learn this overnight, it's a rather large body of knowledge.Also while you're doing this hang out in this forum a lot and learn things here.A new job where you can Earn A LOT more money would also come in handy.In addition to that, read Rich Dad Poor Dad.Over time, other options to make money in this business may open up for you--so be open to them also.Good Luck! 

I should hang on to it because I don't know where the next one will come from."

Is this a good idea, or should I just hang onto it as is for now?

No, we hang our license with a broker, the license is a sales license, not a broker license.

Without keeping renewals up to date, the owner has a big liability hanging over their head since a tenant could move at any point once the lease goes month-to-month. 

Thanks If you are hanging onto the property you can Quit Claim you onto title.

-Hang out with the family of someone who's successfully invested in real estate.

"Absolutely not (hangs up phone)".This is a numbers game and it gets a hell of a lot easier after you get your 1st unit, keep going!

Lately there has been some groups of dealers selling drugs on the corner and at times they come and hang out on my front porch.

You could also hire a mentor to help you as well if your want to go it alone and do your own deals.Either way you need to make sure you thoroughly understand the business so you can make prudent decisions so you can hang on to and grow your capital.