For the ones that feel they are not deserving of Allāh’s mercy, remember this;
In a Hadith E Qudsi, Allah says:
“O son of Adam, as long as you call upon Me and put your hope in Me, I have forgiven you for what you have done and I do not mind. O son of Adam, if your sins were to reach the clouds of the sky and then you seek My forgiveness, I would forgive you. O son of Adam, if you were to come to Me with sins that are close to filling the earth and then you would meet Me without ascribing any partners with Me, I would certainly bring you forgiveness close to filling it.”
[Al-Tirmidhi]