You can check to see if your switch is patched by comparing your serial to these numbers, if it is hackable, you'll need an RCM jig or a paperclip to initiate the hack and install custom firmware on the Switch, but it's unlikely that your Switch is hackable if purchased new in the past couple of years, sorry
First off, go to https://ismyswitchpatched.com/, and enter your serial number.
The beginning of your serial number will be XAW1, XAW4, XAW7, or so on. That is what you select in the prefix
If it says your switch isn’t patched than you are good to go.
Next you have to get an RCM jig, (unless you are confident using a paper clip)
You can go to for more info
The very first thing you need is to learn to read and search. There is a lot of guides on hacking the switch; the different ways needed on the different versions of hardware and firmware; if you could use a payload injector or need a hardware chip mod.
But if you can't read or unable to follow every instruction, do not try to mod your switch, sure you will end with a bricked one.