I go to class, work, hang out with friends, don't want to die and am optimistic about my future but I just don't enjoy anything!

Example:
I have a trading card collection. I order cards in the mail and instead of yelling "Yes! New cards!" my mind just whispers "oh, new cards". I want to be excited, I'm just not.

My friend just started archery. I've always wanted to do archery so I shot with him the other day. Instead of screaming "This is awesome!" my brain whispered "That was fun. Let's do something else"

If I eat cake or candy I kinda enjoy it but when the sugar crash comes I get really depressed.

I also struggle to focus on homework and gave up on studying a long time ago, though I consistently get mostly As in my tough degree program.

Occasionally these symptoms go away for a hot minute. I also have anxiety (mostly under control lately), OCD and tics. I frequently spend time on the internet trying to figure out what's wrong with me, and often change what I think is my issue. My home life was emotionally abusive in my teenage years when a family member "lost their mind" due to an undiagnosed medical condition but I knew she wasn't in her right mind and I feel like I'm over it now that she's better. I also have had sleep issues my entire life so I have been tired literally as long as I can remember (except for summer vacations in grade school when I could sleep on my own schedule).

I was going to bring all this up to my doctor because I am fed up but I first told him about my sleep problems and when all my tests came back normal he literally told me "sometimes I don't want to get up either" so I don't think he's going to take me too seriously.

I know this is "one of those posts" but can ANYONE relate?