First please don't bump your own thread. I understand your wanting to do this here and now kind of deal. But no one is obligated to help you. Not trying to be a jerk im just saying its kinda frowned apon.
Now to your issue. The only way to do what you want to do depends on a few things
1) are you running cfw on your sysnand and if you are did you install any games or homebrew forwarders on it
If your answer is yes to 1), then
2) Do you have a nand backup from before installing any games or homebrew forwarders?
If your answer to 1) is no, then your fine to play your carts online
If your answer to 1) and 2) is yes, then restore that nand backup and you just about good to go (you may run into an issue if your efuses are burnt, which then you boot cfw on sysnand, and update your firmware, then you can boot into HOS (horizon operating system, the name of the OS used by the switch) without cfw and you can do your thing.
If your answer to 1) is yes, BUT your answer to 2) is no, then your SOL and will end up banned if you try
Emunand/emummc is great for 2 reasons
1) its protection from potential bricking
2) you can install your backup/pirated games on it, keep emunand offline/blocking connections to nintendo servers and be able to use sysnand online with less worry about a ban.
I hope this answered your questions.
