@Marco Valles
Congrats on making the decision to buy!
The first thing would be decide on a strategy that many others have said as that will help define your goals and ideal properties.
The second would be getting pre approved with a lender of your choice based on your financials or securing hard money/private lenders that you can work with once you select a property.
While you do step 2, start looking for properties either on the MLS or drive around different neighborhoods that you are interested in.
If you find an ideal property on the market, go see it and determine how much it will cost you to rehab and what the arv will be. If it makes sense, put in an offer based on your numbers.
If it doesn’t repeat step 3 until you find one and get an offer accepted.
If you identify properties not for sale through driving around, try door knocking, cold calling or direct mail to see if they want to sell.
If they do, write them an offer and close on it using one of the ways mentioned in step 1.
Lastly and simultaneously start building your team of contractors that will do the work needed in your rehab.
Book I recommend reading to understand the scope of rehabs is the book on estimating rehab costs by J Scott.
In summary you need to find a solid agent that understands your goals. He/she will introduce you to lenders that can get you approved. From there you can find properties on/off mls.
Secure contractors, start work, rent, refi and finally repeat.