HELP learning Photoshop

When I have done Photoshop workshops I tell people that they don't need to learn it all at once. They should concentrate on what is going to help them with the particular sort of work they want to create, enhance etc. and chose aspects they will use over and over to cement them into memory.  Otherwise you can get into that 'use it or lose it' situation where the next time you need to tool or process, you have to learn how to do it all over again.  

So having said that, can you tell us how you would like to use Photoshop?  Do you want to improve your photographs, or illustrate from scratch?  Perhaps combine image elements and make composites? With that information we can probably get you on started.  There's no limit on the help you can ask for, so you can ask as many questions as you like, and someone will help to keep you moving forward.

Try with this channel https://www.youtube.com/c/Photoshoptrainingchannel/videos

Jesus is good instructor and usually is explaining how tool/option works and he is up to date with tutorials and features.

Many of the tutorials are for older versions of Photoshop, so things might be slightly different. What exactly are you trying to do? Can you give examples of the tutorials where, "Pieces are missing?"