Yes, it must be hard to see animals you cared for die, but I guess doing your best to save those that you can is rewarding enough.
There’s a wildlife center not too far from my university that’s always looking for volunteer help, and I’ve wanted to join for a long time (despite knowing that as a non-qualified volunteer I’d probably spend more time cleaning poop than looking at cute animals), but it’s simply not possible with my workload and schedule. Recently I read on their website that they’ve been brought more animals than ever this past month and are really having a hard time keeping up. :‑(
From what I understand, it’s been a nation-wide problem, because of the heat wave in June-July (it’s better now). The centers have been especially flooded with young swifts who fell when trying to get relief from the very high temperatures under the roofs.
In the worst-case scenario, it can be a reward-trip for getting my diploma in a few years! I’m counting on you in the meanwhile, ha ha.