Always Be In A State of Repentance

Bismillah

When the angel of death comes, you better be in the state of repentance.

Make a sincere repentance now and Allah will forgive you. Allah does not monitor how many times you have sinned. Allah does not concern Himself with the quantity of your sins but He is concerned with the quality of your repentance. 

So every single time you sin, you repent.

On the authority of Anas ibn Malik (may Allah be pleased with him), who said:

I heard the Messenger of Allah (ﷺ) say: 

Allah the Almighty said: O son of Adam, so long as you call upon Me and ask of Me, I shall forgive you for what you have done, and I shall not mind. O son of Adam, were your sins to reach the clouds of the sky and were you then to ask forgiveness of Me, I would forgive you. O son of Adam, were you to come to Me with sins nearly as great as the earth and were you then to face Me, ascribing no partner to Me, I would bring you forgiveness nearly as great as it. 

عَنْ أَنَسٍ رَضِيَ اللهُ عَنْهُ ، قَالَ : سَمِعْتُ رَسُولَ اللهِ صَلَّى الله عَلَيْهِ وَ سَلَّمَ ، يَقُولُ : قَالَ اللهُ تَعَالَى : يَا ابْنَ ادَمَ ، إِنَّكَ مَا دَعَوْتََنِي وَرَجَوْتَنِي ، غَفَرْتُ لَكَ عَلَى مَا كَانَ مِنْكَ وَلَا أُبالِي . يا ابْنَ ادَمَ :لَوْ بَلَغَتْ ذُنُوبُكَ عَنانَ السَّماءِ ثُم َّ اسْتَغْفَرْتَني ، غَفَرْتُ لَكَ . يَا ابْنَ ادَمَ : إِنَّكَ لَوْ أَتَيْتَنِي بِقُرَابِ الأَرْضِ خَطَايا ثُمَّ لَقِيتَني لَا تُشْرِكُ بِي شَيْأً ، لَأَتيْتُكَ بِقُرَابِها مَغْفِرَةً رواهُ الترمذي (وكذلك أحمد) وسنده حسن

(Tirmidhi)