Sins ,a sick heart prevents you from engaging with the Quran, if you find it hard to start the connection sincere istirfar will pave the way to better Quranic habit's

Ibn al-Qayyim رحمه الله: ‎“The heart gets sick as the body does and its cure is in asking for forgiveness and protection. It also becomes rusty like a mirror does and it is polished by remembering Allāh. The heart can also be naked like the body and can lose its dress and decoration, which is piety, and it can feel hungry and thirst like the body does and its nourishment is knowledge, love, trust, and offering service to Allāh.” [al-Fawā’id | Pg. 158]

Smoking kills 🚭 abstain.