Reflecting over death and the events that will occur thereafter to give up sin

Q: I have recently started alimah classes and am halfway through with my hifz. Alhamdulillah, due to the Deeni knowledge that I have been exposed to, I have become more conscious of Allah and I began to worry that my imaan was too weak. I want to strengthen my Imaan.

There are two main things that I am doing that worry me. I watch tv and read a lot of romance novels. I have tried, but I can't stop both at once.

Can Mufti Saheb inform me of which is worse, so that I can concentrate on that first?