I am too thin, Will I have enough time to get the body I want in a month or two?!

I am too thin, Will I have enough time to get the body I want in a month or two?

To begin I will inform you with the things I want to improve in my body.I am too thin so I will like to gain ( Legs,Butt,Thighs and Arms)
I've been doing squats WITHOUT weights,for about a week or two I've seen a bit of improvements.
If I begin today setting up a workout plan such as:
2 sets of 30 reps Lunges
2 sets of 30 reps Squats
and a couple other exercises will I see results by August?

What exercises should I exactly be doing and how long till results.

I've given up soda and drinking water.

2 weeks ago
I'm a 16 year old Girl.

2 weeks ago
I'm a 16 year old Girl.
That weights about 90 something.
And height would probably be around 5'5.

2 weeks ago
ATTENTION :
WHAT I MEANT WAS I AM GIVING UP ON SODA AND GOING TO START TO DRINK WATER FOR NOW ON, haha I can't give up on water that's insane! :D

If you're going for size in gluteal area, you may not have enough time. That's the hardest muscle to build because it doesn't get that much bigger. Your legs will probably be pretty toned by August and I'm sure you will look good. I wouldn't go too heavy if you start with weights because you may stunt your growth. The exercises you chose are good. You can also try laying on your stomach and doing reverse leg lifts. That works the butt and hams. Good luck. Exercise is good for you.