As-Salaam alaikum,
In ayat 14 of Surat Alaqi of the Holy Qur'an, Allah Ta'ala says:--

''Is he not aware that Allah sees?'' (96:14)

Literally, we all believe this noble ayat/verse.. we all believe that Allah Ta'ala sees us. But we should go beyond this by meditating over this ayat, even if for 5 minutes daily, that indeed Allah sees me.. sees us. With this, the love of Allah grows and it becomes harder to commit sins.