I have been going through a very similar experience to you. The more coworkers I have over the years, the more people I realize are extremely jaded and having a tough time caring at all about the world at large.

This is a pretty complicated issue. I think that means you need a sort of patchwork of paradigms to apply to the issue at the right moment.

Sometimes you need to give yourself a break and let yourself live your life - you only get one, and joy is an essential part of a functioning human, and you must continue to function if you are to continue impacting your world.

Other times you must keep in mind that it is literally completely illogical to say that your actions have no impact, obviously each individual action on it’s own is small but the actions humanity makes are made up of individuals. Change happens one person at a time, and individuals are difference-makers.

Consider professional sports teams where the stars elevate the team to the next level - they cannot do their work by themselves, every member of the team is needed and makes an impact, but the impacts are not all the same. You will see the same dynamic play out in the typical workplace - a relatively small portion of people really make things happen at most workplaces in my experience, but they still need the team to help them get it done. So you should continue to think of your actions as being important/having meaning in my opinion, and you should keep striving to make the world a better place.

Sometimes when there is a situation that frustrates me but that I know I cannot change (or cannot change immediately or in full), it helps to quiet that thing in my head that worries by practicing mindfulness techniques. Personally I find “box breathing” (a style of controlling breathing to regulate heart rate and perhaps lower cortisol) to be most effective. Maybe this or some other method could help to quel your feelings when you know that it is a situation to let go of.

Given that the legs move a little bit, I would suggest adding at least a small amount of bracing in addition to whatever you choose to do to fix the center of gravity problem.

Also, bracing helps to stiffen the structure by resisting forces that would make the wooden rectangle into a parallelogram. Here is an illustration:

It was not a relief, however, to learn that the sun will expand to be so large as to fully encompass the earth’s orbit long before it does eventually explode… In only 5 billion years… Which apparently was a few billion less than 6 year old me planned on living for!