Congratulations, Emanuel! Your next step should be to start reaching out to your sphere of influence. Start telling everyone you know that you are now a Realtor. This is an important step as it will help begin growing your business.
Another step you should take is planning your Realtor schedule around your teaching schedule. Figure out how much time you need/want to spend on and in your Realtor business.
When you fully join your agency you should be paired with a mentor. They will help guide you with how to plan your business, as well as working with clients, doing transactions, and all the other details that comes with being a Realtor.
Your agency should also have new agent specific training planned out for you so that you start off on a good foot. They will also have training sessions (usually weekly) available for you to take advantage of. These sessions usually focus on specific topics more in depth such as state contracts, working with buyers, working with sellers, creating business plans, and more.
There's a lot you're about to experience. It may seem overwhelming at times. But you will (should) have the support in place from the agency you picked. I've heard great things about eXp, so I don't doubt you will have a great start to your Realtor career. Always reach out to other agents for advice. Most of us are always willing to help.
Congratulations again, and I wish the best on your journey!!