Andres, Some specifics would help. What type of properties interest you? What strategies are you considering? What are your financing options? Etc. The more info you provide, the better to offer advice and opinions.
There are several strategies on how to start in real estate investing. You can find our extensive guides here https://www.biggerpockets.com/guides
Aside from knowledge, you'll also need to be adept at analyzing deals to make sure you're not buying something that loses money in the long run. You can prevent this by analyzing each and every deal you see to make sure you have a perfect home run of a deal.
Using the calculators on a daily basis would be a good habit to perfect your deal analysis skills. If you need unlimited access, you can explore our Pro membership.
If you need help here in the community and if you have questions about getting a Pro discount code, feel free to reach out to me.