How to buy a house??

I need advice, I don't know anything about buying a house and dont have family I can rely on for the information... I'm tired of renting. Idek where to start, I have good credit but I can't even afford an apartment by myself without having to work over time so I have to split with a roommate. I think a 3 bed 2 bath is reasonable, the idea is to live there with my current roommate and one other person. The end goal is to rent the house out or have it in a tourist area to be rented out for travelers once we all get our own houses.

.....How much savings/money down should I have? How do I know if the market is good or bad? How does one "watch the market?" Is there a website or something? Does minimum wage increasing make the market bad ? How often does the market crash? At what point do people start renting the house out, When the mortgage is payed off??