For me, it helps to have some time before work where you can get stuff done. Of course you need to go to bed earlier, which is the tricky part.
So shifting part of the free time to the morning hours.
Sometimes, you can reorient your problem such that a matrix or tensor has only diagonal entries, making it easier to handle.
For example by choosing new unit vectors or by changing the set of functions describing the problem (whatever is the thing that the matrix or tensor is tied to).
gg = good game, sarcastic is this case no heals = blames the healers for not healing enough as the reason for the loss
the player tries to absolve themselves by blaming theirs teammates