Stand it all on its head. Assume (whether true or not) that you get something out of it all. You know/expect the trashcan lid to come and get excited about that; ah, "Action! I'm Alive!" Who would want to stop that?

Now, assuming you do, as it sounds like you do since you're "complaining," you have to distract yourself in some way so as to either not be there when the lid is thrown or to duck or block it/take it's harm away. Third option, realizing there are probably 100 trashcan lids and you're only being hit with 10 (or 20-30 if you insist) and can reduce that number if you want but probably can't get rid of all of them?

What do you do when you're thinking about something you don't want to think about? You dodge, and shift your mind to something else or you "fix" whatever is bad about what you're thinking so it's no longer bad. So, for options 1 and 2 above you either have to have a collection of dodgeball moves you've saved up from experience, what "distracts" from the lid or you have to look at the lid coming and change it into an opportunity or something else benign. Option 3 is concentrate on all the lids that don't hit you, may come at you but "miss" and/or are benign in the first place and when you get hit with one, know it was probably time for one to hit, kind of like knowing it's going to rain. Good time to see how your rain gear holds up, whether your umbrella needs replacing or is big enough, etc.