So, onwards with chapter 2!
This story is of werewolf genre from storyheadquarters101, and it isn't your cliche possessive-mate-loves-you. Gabriella survives by herself.

So, we pick up from the last scene, where Gabriella blurted out a question. She clearly did not read the blurb of her story. 😂

I don't think you need more of those "Gabriella" or "Alpha-Samuel".

Classic Gabriella, a blurt in front of the freaking leader.
The first few lines are good :)

Now, onwards.
After the What was I thinking?, you can make it seem like part of her thoughts like...

What was I thinking?
'I'm in front of the Alpha. THE REAL ALPHA.'

(And not those typical possessive alpha)

You can split to another paragraph after her "Your Majesty."

Then I sensed his mouth open.
I was excited, my heart beating fast, but in a good way, not like how I was back in the cave.

You can browse the internet for ways to describe excitement. Here's some help, see Fear:

If I'm not mistaken, fear and excitement have the same symptoms and signs..

A new mission.
That I would surely accomplish.
It was an honor.
I wanted to hear it, to hear from his mouth what impossible mission he'd give me.

I'm adding a reason to why she's so excited, but it depends on you, of course.

The cave was peaceful, but I needed excitement in my life. To leap into action. To pump in the adrenaline. To get out, and have some fun. To test these powers of mine.

So then, Samuel finally told her to find her twin. Now it sounds like Samuel is a father making his daughter make up with his other daughter. :)

If you can capture it, why do you hide away from it? Gabriella, you can control the moon phase and has super strength and change to wolves, and spoiler, control ice and water and us the most powerful person in the universe, but you can't take on these Saber Beasts?

To be fair, we're not yet introduced to any Saber Beast.
Oh, right.
Maybe you just don't like fighting them in packs...

Oh no, I could capture a beast if he wanted me to, but that wasn't it. That wasn't the mission.

I did not know where my twin was.
Or if she was still alive.
It was impossible to find her.

She does from me over there, has a problem since I have no idea what she meant. I can't edit or try to suggest something for this one, since I have no idea what you're trying to tell.

So what if it's an order of the Light Ancestor?
What the Alpha said is your mission, and you want it, so it doesn't matter.
You're in a room? What?

Now, this is falling to the White Room Syndrome, where an event happened without any of the readers knowing that she's in a room, or how the room is like. Try to describe the room. The curtains, where the Alpha is, where Gabriella is. The colour of the room. The smell.

What was I to be afraid of?
Nothing.
I wasn't a coward.
I was powerful, and strong.
I could face that twin of mine.
No problem.

I hadn't seen her for 13 years. Nor ever even heard of her.
Maybe she didn't even remember me anymore.

Then, all the way to the second last sentence.

I couldn't believe it.
How should I even find her?

Hey, Samuel, Alpha guy, you can't just say it without telling more instructions or guide. What kind of dad are you?
Unless, the twin is already nearby and he knows it... and doesn't tell anything because suspense is cool.

What deny?
Why would you even deny it..?
All you have to do is meet your twin. The Alpha didn't tell you to kill her or anything.
There's no room for denial, or angst over "She's not my twin. She's evil."

Alpha's, by the way.
Oh yay, a friend!
Two heroines are always better than just one.

But I guess it wouldn't hurt to have  company.

I like a friend's comfort too, Gabriella. But my friends are touchy-feely much. There's this one friend who's all tough and insensitive and food is her only friend, but once she said privately that she cares about me, and is worried.
Yeah, it's just me being a teen.

I think you should say more about the friend, Miathys. Her appearance, maybe, does she have her own territory as well?

So far, the rest of the chapter is brilliant :)
I like Miathys's loyalty.

'Why is it still wet? It should've dried up by now.'
"You're just exhausted, Gabby," I told myself. "It isn't the same blood. It can't be the same blood."

Start a new paragraph after waiting for me.

"Gabby! There you are!" Miathys's exclaimed. "Someone's looking for you."

I wondered who.

My guess here, it's either
A)  some kind of parents. The Vampire mom, maybe?
B) her crush of some sort..? IDK..
C) Gabriella's twin sister

That's all for chapter 2!
Keep on working and browsing, never give up! ♪ ♬ ヾ(´︶'♡)ﾉ ♬ ♪

So far: 7/10
There are fewer mistakes here than the last chapter.