[Petite]

First of all, welcome to the forum.

Secondly, please don't beat yourself up about this. Sometimes life gets in the way of what we mean to do, and things can get overlooked. I too suffer from depression and anxiety, and know just how incredibly tough it can be.

Gus has eaten and drunk now, so just be generous with his food and, as Ria says, make sure he has another water source.

Please be kind to yourself as well as Gus, and try to make sure you have some support.