Kinda like the OP is doing?
If someone is suffereing from depression, they're kinda gonna know it, A LOT. That is, after all, how depression afflicts us. It isn't something that you look back decades later and say, ''Well in retrospect, I must have had it because hormones were a bustling.''
In fact, as we age, them hormones that made some really sucky childhoods seem to have some decent moments lessen, hence why chronic depression worsens with age. It ain't a phase we went through till we found a BFF.
Besides, the OP is afflicted with sociopathy and narcissism, his 'understanding' of emotion is via textbook, not via feelings. That's why it sounds mechanical and forced.