How many types of Autism are there?

I found 5;

High functioning autism

Regressive autism

Non-verbal autism

Kanner’s Syndrome

Autism savant

Hope this helps you ♥︎

Im pretty sure there are 4 or 5

Depression is lifelong, though you can get medication to with it. the difference between sadness and depression is that sadness lasts a little bit, depression last a long time and it goes on and off. people usually get depression through experiences they have been through, or genetics.