First some general questions:
0.5: Do you know your credit score? If not I would suggest beginning to build what credit you can. (Added because of list 2).
1: Do you know much are you able to save monthly? What is a rough estimate of the money you have saved? The quicker you can answer this for yourself the better. (I can save about $500/m and have about $7000 saved if you count all of my assets).
2: Do you have or need a lender? If you need access to capital a lender can get you there faster but you'll need a decent credit score, aim for 600+. (I'm currently at this stage and anyone past this stage with better knowledge can chime in and supersede anything said beyond this point)
3: Find a deal. (From my understanding a buyer can back out at any point before a purchase is finalized. This gives adequate time for property assessments to be made and negotiations to take place before you are left holding the property).
4: Fix it up. (Make sure you pay attention in the assessment step and set project budgets especially an unforeseen repair budget and calculate those out before you end up eating into your profits).
5: Network with a few local area real estate listing agents that can get your flips to the masses. (Be sure to set S.M.A.R.T. goals to achieve the best results)
I'm not writing anymore beyond this point as I am still learning and it wouldn't hurt you to do some more research on these things yourself, hopefully you have the jist of where to begin.
Disclaimer: I'm new to real estate investing and have been researching it.