Being independent can be incredibly fulfilling.
It can also be fucking exhausting sometimes.
My car battery died, so I ordered a new one. I carefully checked the amperage, dimensions, and compatibility with my car model. It arrived, I removed the old battery (which was no small feat, and I was ridiculously proud of myself when I finally managed it) and then discovered that the terminals on the new battery were reversed and it wouldn't work.
So now I have to return it. Which means carrying a 15 kg battery to the post office.
Then I have to wait for the correct one to arrive.
And after that, I get to figure out why two of my tyres are flat (no problem, I have a spare tyre and ordered a charger/air blower thingy, hopefully it will work).
I am perfectly capable of taking care of my own shit.
I'm just getting a little tired of it. But lesson learned: buy the exact same model of whatever you need to replace if you can.
/rant
As I said, it's not obvious. I don't know why there's not just one sort that fits everything