A completely random thing that has brought me immense joy lately is cockatoo videos.
Yes. It's a real thing. You can look it up.
There's one in which Max tries to summon the devil in protest against a vet visit. Another one has Gotcha running frantically around the house, exclaiming how she can't work because of bed rats.
It's amazing what laughter can do to your mental state. It doesn't matter what makes you laugh (I still don't understand what people find so funny about fail compilations or watch people die inside videos) - just do it. Bring yourself to laughter, especially during those moments when you feel like no funny video can lift you up.
It might sound like a quick hack, nothing life-changing or profound. It might sound like a cheap trick.
But what's wrong with that?