Demons in the head

Right, I mentioned about having depression previously which I think is just a normal-young-adult kind of depression?
Let's see, how should I describe it. I'm bad at describing stuff so if it anyhow doesn't make sense or unclear about,well so be it.
Overthinking. Sometimes I just don't know what's going in my head.I can just interlink so many things that were happening into one thing. End up getting frustrated or upset. Ughh
Inner void. This comes with an anxiety attack,a very bad one sometimes. I don't mind admitting ,but yeah I broke down too. After one night of sleep and I'm back to normal.
Some people would say I lacked of love or feeling lonely.It's not that way tho, I just don't know how to put it.
As of today, I still can concentrate on my stuff (based on my observation). Still falling asleep in class as always even I had enough sleep,actually not,I've been sleeping late,very late.Maybe that's one of the reasons why my emotions were unstable.
The mood changes real fast.One second I'm in cloud nine ,another second I'm in hell with Hades.
Whatever it is, I'm still very sane.
I still make lame jokes that you couldn't stand.

And her.I don't know.
Today I tried avoiding her as much as I could.
Avoiding someone is so not me.
I did it and I felt bad about it.
She tried to talk to me but I didn't even look at her and speak.
I reluctantly replied with short answers and gave her a cold look.
Avoiding as much interactions as I could.
This is not the right way I know.
So what excuse am I giving this time?
I just need sometime away from her.At least for now.
But then again , I felt so selfish.
Why did I fall in love with this girl in the first place again?
On a side note, why would she care what I'm doing right?
I tak tau lah.One girl can turn my world upside down.
Feels so vulnerable now, this is not me , I need to get back up.