magisana,
I have been studying forex systems and methods for close to a year now and have not invested any real money yet, but thought I would offer the following advise.
You can invest in forex many different ways and most, if not all, can be successful if the process and the forex markets are learned first. Price Action (PA) is only one method. That said, there are many ways to use PA to invest in forex, from candlesticks, patterns, support and resistance, combinations and so on.
Just deciding that you want to us PA is not enough, although it is a start. I lean that way myself. You also need to determine how you want to use PA, which is to say, what method do you think will work for you. There is much free information on the Internet. I would suggest that you read and study the different types and methods first to see what you think is going to work for you. Then do some paper trading, realizing that paper trading is only a first step, and see if what you think is going to work for you, really will. Also, what time frame do you want to use? Some of this stuff works better on different time frames. Also, any restrictions you may have, like a day job, etc. These can impact the system or method that can/may use. Do you have the patience to invest on daily charts, can you handle the stress of investing on the M5 time frame, how much is your initial investment capital, etc.
Google: forex price action. You will find plenty of reading to keep you busy.
One last thought, there is much written out there that is shaky at best, so take what you read with "a grain of salt". Some info is golden, other is garbage, including some that they will charge you for. It is up to you to separate the wheat from the chaff, or be separated from your money. Good luck.