Do I have to include income made from real estate ($300) when my office did not provide me a 1099? And if I do, how do I include it etc?

Yes, even if you don’t receive the appropriate forms, you’re still responsible for paying taxes on all of your taxable income. If you didn't make more than $600, the business doesn't have to file Forms 1099-MISC or 1099-NEC.. If you didn’t receive a 1099 form, you still need to report the amount of income on your tax return. 

You are considered self-employed and will complete a Schedule C which is how you report your self-employment income. The good news is that you can deduct ordinary expenses that you incurred making this income.  Follow the steps below to enter your income.

1. Launch TurboTax
2. In the search bar at the top, enter in Schedule C
3. Select Jump to Schedule C
4. Answer Yes on the next screen - Did you have any self-employment income or expenses?
5. Answer the questions on each screen, when you get to the screen - Let's enter the income for your work, select Other self-employed income and Continue
6. Enter the amount under cash or check
7. Continue going through the screens to enter your expenses.

For additional information, review the TurboTax help article How do I report income from self-employment?