If you are seeking tranquility and peace of mind  you don’t need to add more things to your life ;  to avoid dispiritedness you need to give some things up. 

And to avoid having things you don't need, you'll need to dig deep. 

You need to dig deep in order look at the root cause of holding on to the unnecessary, including emotional baggage.

The fact is having  things that you don't need creates an unnecessary chaos in your life.

An overactive obsession with having to much is definitely rooted in some kind of need for a comfort of some kind.

I may be wrong, but when you do hold on to stuff you don’t need, I’m guessing you're more likely to feel frustrated and overwhelmed.

Life is too short and too good to have non-essential distractions.

Learning to live a life equips you with a simpler, less complicated state of mind.

Why not give up the things that hinder you and experience the freedom of simplicity?