Shaykh ‘Abdul Qadir Rahimullah said: “Whomsoever has achieved the pleasure of Allah, has obtained everything, and whomsoever was not able to achieve the pleasure of Allah has lost everything.”
One should never abandon Tawbah, as repentance is a way of amending the relationship with ones creator. If one cannot amend the relationship with Allah, then no other relationship will benefit him.
Shidad ibn Awus reported: The Prophet صلى الله عليه وسلمsaid, “The wise man is one who holds himself accountable and performs good deeds which will benefit him after death, and the foolish man is one who follows the desires of the Nafs and expects (forgiveness) from Allah.” [Sunan At-صلى الله عليه وسلمTirmidhi, Book of the Resurrection, Number 2459, Hasan]