But sometimes I get stuck and I would like some help, so if u want to help me or know someone who can... I'm eager to learn
Different people take different approach to learn Linux.
Some people will engage in forums such as this one or Q/A sites to get help, sites are however useful only to solve specific problems and not for general teaching.
Some people will get used to reading manuals and documentation and work their way trough learning things more deeply.
Some yet another people will just use Linux daily and learn as they go without forcing to learn everything ASAP.
Some yet another people will watch YouTube tutorials and videos to learn their way.
Some will read books or articles.
There are many ways.
Make your choice that's most entertaining to you because if it's not entertaining but burden then you'll run out of energy soon and possibly give up at some point.
But like others said, installing Linux to hard drive and using it as your main OS is the normal way to start because practice is of more worth than theory, it's easier to remember what you learn that way.
If you do only theory but no practice you'll forget what you learn relatively soon.
I suggest to note down thing that you learn, in form of short notices to be able to quickly recall without having to go trough tutorials and forums every time your forget. this will help you memorize things much more quickly.
Make a list of topics upfront that you'll learn, the topics are not you choice but a list of thing you learn one followed by another depending on your existing skills.
If you're total noob, here is an example list to start with mastering the basics:
1. Linux file system hierarchy, ex. what each directory means and what kind of data it stores.
2. File system permissions, learn how file system permissions are set, and modified on files and directories
3. Terminal commands, note down hundert's of commands and learn what each one of them is used for.
These 3 topics are good start, it's how I started and I find them very good to know as a beginner.
Then create a new list and move on and so on until you
master as many topics as possible.
If you need help with lists for you as a beginner, ask here and we'll share some with you to continue.
Or choose some other method you'll enjoy more.
PS.
Kali Linux is for experienced users, you'll need to grasp many topics to get comfortable using Kali, otherwise you'll be only troubleshooting things and not learn anything that's important to get to know Linux.
You can return to Kali once you master the most essential things, then Kali should be p* smoke for you.