You are probably thinking how am I ever going to cope with this awesome responsibility?

The good news is you were picked for a reason, your friend or relative thought you were the right person for the job and they put their complete trust in you.

The bad news? 

You are probebly wondering how you are going to keep everyone happy whilst you carry out the deceased persons wishes in their will  both stated and implied.

Unfortunately unless you are extraordinarily fortunate you are at various times going to displease everyone involved.