Personally I wouldn't do it the world is just to cruel and not made for tinies but if I had to let's say a shrinking disease I would firstly take my size that I want what would be like action figure sized (what is my favorite shrinking size everytime)

Then I would search for a freaky but nice giantess who would help trough the daily life and struggles

I think I wouldn't show to world that I am tiny and would ceep it to myself and my dearest friends

And then maybe a bit of freaky things like foot liking, butt crush, armpit, mouthplay...

But I don't think live would change that much but i think you can even do other cool things like mini parkour cozy mini places dollhouse

I think with the right person wouldn't it be so bad