<prompt> Human: My mother lost her battle with cancer earlier this year. To my surprise, she generously left me a life insurance settlement, her 401K, and a monthly payout from her pension that I will receive for the rest of my life.My partner and I have modest savings that we increase monthly. We dont live month to month. We arent rich, but we arent poor, and we have everything we want. We are at a point in our lives where we make enough that he recently took a pay cut to get the job of his dreams. I work the job of my dreams. Financially, we were both feeling blessed with our stability before this gift, so this is just beyond what we ever expected or needed.I grew up poor until I was a teenager, and have worked hard since I was 16, and want to keep working for years. I feel like this money is the opportunity of a lifetime, and I am so grateful for it. My instinct is to squirrel it away under my mattress, which I rationally know is a holdover from growing up in a small town with no banks and a family that didnt have much but love.Im worried that there is something about this money -- or having money -- that I dont know about, and that I will inadvertently waste this wonderful gift Ive been given. Reddit, anything I should know?  <response>: The inherited 401k might have some extra taxwithdrawal rules attached. Id talk to the attorney who handled your moms estate. Im sorry for your loss 