Allah Azawajal creates Jannah for jinn and mankind, everybody is entitled to it but our deeds can only deprive us from entering Jannah. There are Duas that a true believer must be saying everyday which Allah in His mercy might grant him his request the Duas are:
1. The Prophet (peace be upon him) said: "Whoever ask Allah Azawajal Jannah three times, Al jannah says : Oh Allah admit him into Jannah, and whoever seek refuge from fire three times, fire says: Oh Allah save him from fire." (At tirmidhi, 2572)
اللهم اني اسالك الجنة
Allahumo Ini As'aluka L' jannah
Yah Allah I ask you for Jannah
2. The Prophet (peace be upon him) said: " There's no Muslim who says in the morning and evening: I am pleased with Allah as my Lord, with Islam as my religion and with Muhammad (peace and blessings of Allah be upon him) as my Prophet. (Three times)(Allah has promised that anyone who says every morning or evening will be pleased on the Day of Resurrection). Ibn Majah(3870)
رَضِيتُ باللَّهِ رَبًّا، وَبِالْإِسْلَامِ دِيناً، وَبِمُحَمَّدٍ صَلَى اللَّهُ عَلِيهِ وَسَلَّمَ نَبِيَّاً
Radheetu billaahi Rabban, wa bil-'Islaami deenan, wa bi-Muhammadin (sallallaahu 'alayhi wa sallama) Nabiyyan.
3. Reciting Ayatul Qursy after every fard Salah
The Prophet (peace be upon him) said: "Whoever recite the verse of the throne (Ayatul Kursy) after every prescribed prayer there will be nothing standing in between him and his entry into paradise but death." (Al Muj ma'al kabir 7406)
اللَّهُ لاَ إِلَهَ إِلاَّ هُوَ الْحَيُّ الْقَيُّومُ لاَ تَأْخُذُهُ سِنَةٌ وَلاَ نَوْمٌ لَّهُ مَا فِي السَّمَاوَاتِ وَمَا فِي الأَرْضِ مَن ذَا الَّذِي يَشْفَعُ عِنْدَهُ إِلاَّ بِإِذْنِهِ يَعْلَمُ مَا بَيْنَ أَيْدِيهِمْ وَمَا خَلْفَهُمْ وَلاَ يُحِيطُونَ بِشَىْءٍ مِّنْ عِلْمِهِ إِلاَّ بِمَا شَاءَ وَسِعَ كُرْسِيُّهُ السَّمَاوَاتِ وَالأَرْضَ وَلاَ يَؤُودُهُ حِفْظُهُمَا وَهُوَ الْعَلِيُّ الْعَظِيمُ
Allaahu laa 'ilaaha 'illaa Huwal-Hayyul-Qayyoom, laa ta'khuthuhu sinatun wa laa nawm, lahu maa fis-samaawaati wa maa fil-'ardh, man thai-lathee yashfa'u 'indahu 'illaa bi'ithnih, ya'lamu maa bayna 'aydeehim wa maa khalfahum, wa laa yuheetoona bishay'im-min 'ilmihi 'illaa bimaa shaa'a, wasi'a kursiyyuhus samaawaati wal'ardh, wa laa ya'ooduhu hifdhuhumaa, wa Huwal- 'Aliyyul- 'Adheem.
There is none worthy of worship but He, the Ever Living, the One Who sustains and protects all that exists. Neither slumber nor sleep overtakes Him. To Him belongs whatever is in the heavens and whatever is on the earth. Who is he that can intercede with Him except with His Permission? He knows what happens to them in this world, and what will happen to them in the Hereafter. And they will never encompass anything of His Knowledge except that which He wills. His Throne extends over the heavens and the earth, and He feels no fatigue in guarding and preserving them. And He is the Most High, the Most Great.(Whoever says this when he rises in the morning will be protected from jinns until he retires in the evening, and whoever says it when retiring in the evening will be protected from them until he rises in the morning).