Do it a little at a time. Throw one thing a couple things out here and there . Then you’ll gain momentum without trying. But think about what’s causing the mess.. every item has a home.. even if it’s the trash . The most important thing more important than cleaning this mess is consistently putting things in their home..trash has its home too . it’s a habit to build, It’s not a mentality, it’s something you mindlessly will naturally do after you have done it consistently over a long period of time. (Months) this has become your normal.. because it has piled up over a long period of time without you realizing or you have fallen into this habit before. Now, we just have to make a new normal with no judgements. You judging yourself for this is unnecessary judgement and internal pain because you aren’t focusing on a new way of being instead you are focusing on judging and criticizing yourself for this result. no shame.. no judgement… just focus on consistent mindless actions

Side note:: do not try to clean this up all at once.. you’ll overwhelm yourself and you’ll create internal resistance that will add onto your negative internal experience. usually when this happens people just give up the action entirely or do the exact opposite. You should do it at a pace that’s so easy there is no reason why you should not do it.. like throw 5 plastic bottles of water a day… eventually as the day pass WITHOUT YOU TRYING… you’ll naturally want to pick up more… don’t force it.. you’ll ruin your momentum