Hi guys, I am a 17 year old student. I would like some assistance

I am extremely eager to get into real estate and property investing. Can someone give me some assistance and more of an insight please? I can possibly have access to a certain amount of money but it will be more of a refurb budget. Therefore I am going to begin with doing assisted sales, then once enough capital is raised, move onto doing quite a few flips and then invest some of that money into owning rental property using the BRRRR strategy. Is there any strategy or something you should follow when doing property flips? Also, with both flips and rentals, is it best to buy with cash or private lender/mortgage? When doing BRRRR, when refinancing, can you take out the equity that would result in profit straight into your pocket, or should you leave it in the property? I will be very grateful if someone could get in contact with me.