I feel sleepy all the time, I don't feel the enthusiasm to do anything, I feel like I have given up on life, am I depressed?

First thing is take a aptitude and personality test online.
There are lot of free websites.

There is no right and wrong answer in the aptitude (skill test) and personality test.

It is just to find about your self. What comes naturally easy to you.
Some people get maths easily, some get language easily.
So don't worry about giving right answer, just be like you are talking to your buddy.

Without any pressure to give right answer, just enjoy the test.
If in doubt take these tests few times.

You will find a pattern and you will know what you enjoy.
Some people will be good at everything.
Don't worry.

That's where the personality tests come.
Take the personality tests. This test will tell what kind of person you are.
What kind of environment you enjoy and what kind of people you like to hang out with.

Over a period of time your personality and skills might change but these tests help to start with clarity.
They give a clear idea in case your confused.
Now you will make proper choices about your studies and career and everything your life.

Atleast you will know how to approach going forward.
With time, sooner or later you will see that you will get to know what you are good at..
Very soon you will immerse your life in that.
Hardly takes 20 mins. Have Fun. Have a Good lyf.

With this kind of thoughts and actions, you will beyond happiness and sorrow in life.
In fact nothing will bother you. Neither Happiness or Tragedy, you will automatically what needs to be done.
Think about it.

I mean now you might a solve a problem, what about tomorrow.
There are things always waiting to happen in life.
It is part and parcel of life.

So be beyond problems and solutions.
Example:
See, it’s like, let it be however a big problem, if you know that if you press this button, it will solve the problem, what will you do?
In some cases you don’t which button to press.

So you press the buttons, what you can?
Don’t bother about the others. Sooner or later you will get better.
It’s like say I am addicted to drugs. Ask any drug addict, if i give a pill that will make him forget the addiction going forward, will he take it or NO.

TRUST ME, invariably sooner or later every drug addict will want that pill.
So, this is life, it is will be harsh and get worse as well, but you can be beyond all of them.

Consult a counselor near your place. Then take a call on what needs to be done- best.

Or consult someone whom you trust with your life, a well wisher, Grandpa, Elders etc. who is good at advice and will stand by you with their life you ask for help.

Remember both are important, the person whom you trust should be ready to stand by with life for you.

And you too should trust that person so much that you are willing to place a bet on your life trusting that person.