Last week, I somehow found the nerve to ask the girl of my dreams to prom. It was honestly one of the hardest things that I've ever done. I was ecstatic after she said yes, but lately I've been feeling even more depressed, worried, et cetera, than what is typical for me.

I understand being depressed for no reason, but (and you might not see this today) it's Easter Sunday!! Appreciate life; yeah it's hard to do sometimes, and maybe it's just me, but looking at all that God has given us makes me overwhelmed with happiness :))
I'm sure it's just hormones unfortunately :P
Maybe you should try going to a counselor or talking to someone though :))
Have a wank. Trust me, it helps.
And bro your just worried chill out