The concept of Jinn fascinates alot of people not just youth.
Jinns were created before mankind, the evidence for this is;
And certainly We created man of clay that gives forth sound, of black mud fashioned in shape.
And the jinn We created before, of intensely hot fire.
[Surah Hijr Ayah 26-27]
This is why the Angels replied to Allah, when He Subhanahu wata'la said;
And when your Lord said to the angels, I am going to place in the earth a khalif, they said: What! wilt Thou place in it such as shall make mischief in it and shed blood, and we celebrate Thy praise and extol Thy holiness? He said: Surely I know what you do not know.
[Surah Baqrah Ayah 30]
How can the Angels know of something that hasnt yet happened? Simple, the answer is they dont but because the Jinns where created before mankind and they used to shed blood and create mischief why wouldnt mankind take the same course?
Jinns are created from smokeless fire;
And the jinns did He create from a smokeless flame of fire.
[Surah Rahmaan Ayah 15]
Jinns do possess people and there is a halal and a haram way of removing this evil.
The haram way is to fight it with Magick which ofcourse is a form of shirk, but because the Jinn has helped you fall into shirk the biggest of sins he will be satisfied and leave you, the way to fight jinn with Magick is by going to a sourcerer or calling on a bigger Jinn for help. This was and still is, in some parts of the world, a very common practise.
And verily, there were men among mankind who took shelter with the masculine among the jinns, but they (jinns) increased them (mankind) in sin and disbelief. [Surah Jinn Ayah 6]
The halal way, and the recommended way is through Ruqyah, meaning to recite the Quran or authentic Duas on the afflicted person. The Quran is a healing;
And We reveal of the Quran that which is a healing and a mercy to the believers, and it adds only to the perdition of the unjust.
[Surah Israa Ayah 82]
Yahya related to me from Malik that Yahya ibn Said said, "When the Messenger of Allah May Allah's peace and blessings be on him was taken on the Night Journey, he saw an evil jinn seeking him with a torch of fire. Whenever the Messenger of Allah May Allah's peace and blessings be on him turned, he saw him. Jibril said to him, 'Shall I teach you some words to say? When you say them, his torch will be put out and will fall from him.' The Messenger of Allah May Allah's peace and blessings be on himsaid, 'Yes, indeed.' Jibril said, 'Say, 'I seek refuge with the Noble Face of Allah and with the complete words of Allah which neither the good person nor the corrupt can exceed, from the evil of what descends from the sky and the evil of what ascends in it, and from the evil of what is created in the earth and the evil of what comes out of it, and from the trials of the night and day, and from the visitations of the night and day, except for one that knocks with good, O Merciful!" "'
Audhu bi wajhi'llahi' l-karim wa bi kalimati'llahi't-tammati. Allati la yujawazu hunna barra wa la fajir, min sharri ma yanzil min as-sama, wa sharri ma yaruju fiha, wa sham ma dhara' fi'l-ard, wa sharri ma yakhruju minha, wa min fitani'l-layli wa'n-nahar, wa min tawariqi'l-layli wa'n-nahar illa tariqan yatruq bikhayr ya Rahman!
One should also read Ayah Kursi, which is a verse in surah Baqrah;
Allah is He besides Whom there is no god, the Everliving, the Self-subsisting by Whom all subsist; slumber does not overtake Him nor sleep; whatever is in the heavens and whatever is in the earth is His; who is he that can intercede with Him but by His permission? He knows what is before them and what is behind them, and they cannot comprehend anything out of His knowledge except what He pleases, His knowledge extends over the heavens and the earth, and the preservation of them both tires Him not, and He is the Most High, the Great. [Surah Baqrah Ayah 255]
Ibn Taimiya, Majmu, vol. 19, p. 55
"The numerous people who have experienced these events all confirm the amazing effectiveness of this verse in warding off jinn and breaking their spells. It [editor's note: ayat al-Kursi] has a great effect in repelling devils from humans, from the possessed and from those picked out by jinn, such as wrongdoers, people with bad tempers, those who follow their desires and lusts, musicians and those who become ecstatic through whistling and clapping. If these verses are read over them with sincerity to Allah, the jinn will leave. It will put an end to the mirages created by the jinn. It will also disclose the falseness of those, the brothers of the jinn, who perform miraculous acts. The jinn inspire their devotees with some knowledge that the ignorant think are miracles that Allah grants His pious servants. In fact, they are simply Shaytaan's acts of deception over his devotees, of those whom have earned Allah's wrath and those who have gone astray."
In short, we should be aware of the jinns but shouldnt be obssessed with them and create a false fear of them, rather put your trust in Allah and He will surely protect and safeguard you.
Now surely the friends of Allah-- they shall have no fear nor shall they grieve.
Those who believe and have taqwa
[Surah Yunus Ayah 63]