Getting too hard on yourself in self improvement gives a sign that how traumatizing sinning is.
You may not remember your every mistake every single day but the way you carry yourself. The way you worry for matters that are not in your hands shows how afraid are you to return to your past. You may not be conscious of it but deep down there's a wounded self. It takes time to heal from aftermaths of sins too.
There are certain pairs of Allah's names that really stand out in certain surahs.
Every name of Allah has multilayered meanings, but when it is combined with another name, as is often in the Quran, it adds an entirely new dimension of that same name.
Al-Azeez (Almighty) is usually paired with Al-Hakeem (The wise), or sometimes Al-Aleem (The All knowing). In a few places in the Quran Al-Azeez is paired with Al-Raheem. 13 to be exact.