Say Lots of Istighfar Every Day
The Messenger of Allāh صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ said:
‘Whoever says: ❝I seek forgiveness from Allah, the Magnificent, whom there is none worthy of worship but Him, the Living, Al-Qayyum, and I repent to him, (𝐀𝐬𝐭𝐚𝐠𝐡𝐟𝐢𝐫𝐮𝐥𝐥𝐚̄𝐡𝐚𝐥-`𝐀𝐳̣𝐢̄𝐦 𝐚𝐥𝐥𝐚𝐝𝐡𝐢̄ 𝐥𝐚̄ 𝐢𝐥𝐚̄𝐡𝐚 𝐢𝐥𝐥𝐚̄ 𝐡𝐮𝐰𝐚𝐥-𝐇̣𝐚𝐲𝐲𝐮𝐥-𝐐𝐚𝐲𝐲𝐮̄𝐦𝐮 𝐰𝐚 𝐚𝐭𝐮̄𝐛𝐮 𝐢𝐥𝐚𝐢𝐡) then Allah will forgive him, even if he fled from battle.❞
[Hadith, Sahih At-Tirmidhi: 3577]