There are a couple of threads that have covered this already, I’ll link them at the bottom. First of all I would definitely look into the simulator to start with. As it isn’t as easy as the YouTube videos make it out to be. Infact its completely different to flying a camera drone as the controls are 100% manual no GPS position hold as such on an FPV quad.
FPV: My Experience and kit list (with links)
100% look into a simulator but make sure to get a transmitter that can connect to a pc rather than using a games controller as the sticks act differently.
Hope this helps.