Raspberry Pi B+ V1 2 discord bot host

not sure if this is the best place to ask, but to put it simply i need to download node.js version 14/16 so i can work with it inside of the Pi and then host the bot from the device, all my knowlage is in the writing part of the code so im completely lost trying to set this up, any help is appriciated and any more info you need please ask!!

its running rasberry pi os :D