how can i easily master photoshop?
It's better if you look for editing experience first, like working part time in a photo studio.
Because his experience is better than seeing him on YouTube.
Still, there are a lot of educational videos in Youtube. Actually Youtube is ful of them.
It is the same to watch videos or go to a photo studio and learn on the job.
The work happens online and you have to spend a lot of hour on the program by yourself in order to master it.