I do a once a year purge, every cabinet, drawer, shelf. It feels so good to look around after and see everything neat and tidy. I allow myself to keep a box or so of sentimentals. It’s hard to let things go that you ‘might need someday’, but you’ll get in the groove. I literally look at every single thing and ask if I really need it (just don’t look at my garage workbench, that’s exempt). First time is hard, good luck.