I now have someone trying to assist me with getting my nodes back and to do so, I have to re-add the Metamask extension to my wallet.
Who is the man assisting you?
If you can do it yourself, I suggest not asking someone to assist you, too risky for you. Except, it is your family members or your close friends, then I can understand why you ask an assist from him.
By the way, what wallet do you use?
There should be an instruction to add Metamask extension from the official site of your wallet. You just need to follow the instruction, I am sure this process can be done by yourself, no need for an assist from another person.