Less is almost always more. The fewer things you have, the fewer things you need to keep track of, the more time you can spend doing things that enrich life.
I highly recommend looking into Marie Kondo and the little game-changing pointers that make decluttering easier. She recommends that every deep clean begin by taking out all of your things. And then you pick up every single individual thing. With every item, you consider whether or not this belonging beings you any joy. If it no longer brings you joy, you must thank it for its service and recycle or dispose as appropriate. If the thing still brings you joy, you must then find it a home.
She's a little out there, but in a good way.
She believes it is cruel to ball up your socks. Why would you ask your socks to work even when they are at rest?
I've mostly achieved minimalism via the upper lower class life. It's pretty liberating.
As for food minimalism, I've achieved this by being a single person. I buy my proteins in frozen bulk and cook small simple meals that usually feed me twice. Luckily, I kinda like being in ruts, so committing to a style of meal for a couple weeks isn't that offensive a concept to me.