My decluttering mantra: “use it or lose it.”
Look around, if you haven’t used something for over a year – absolutely get rid of it.
I have a 6 month rule for materials and a 1 year rule for clothes (all the seasons).
If I haven’t used something in 6 months, I toss or donate it.
If I haven’t worn something in 1 year, I toss or donate it.
Keep it simple. You can always buy something similar again if you need to, but I doubt it 🙂
Less is more.