Stop thinking, start discarding

Make a strong decision to keep only a few truly necessary things - write them down
Turning a living environment into a minimalist place is not easy if we don’t have a strong reason and firm decision. Make a decision and list of items you want to keep (essential things) and stick to it.

Discard all you can during one week or two
Set each day in a week for discarding a different category of things. For example, 
 - Monday: discard all the junk from the apartment, 
 - Tuesday: discard everything you have two of,  
 - Wednesday: discard electrical appliances, 
 - Thursday: sell or give away all books and decorations from your shelves, 
 - Friday: get rid of excess items from the closet, 
 - Saturday: discard everything you have in multiples, 
 - Sunday: toss things you haven’t used in a year.

Give yourself time by saying “see you later” to some things
If you have difficulties throwing away some things, put them aside for a while while you reflect on whether you really need them.

Make discarding a habit
Discard one thing every day.