Assalamu Alakum. Before becoming a Muslim I stayed in houses where people played with trying to communicate with evil. I also watched horror movies since childhood. I am a Muslim 3 years. Do I need to do something to get rid of evil. I sometimes have multiple bad dreams sometimes

Ustadh AbdulAziz al-Haqqan

Now, what you have to do is: 1. Perform the adhkar in the morning and the evening. 2. Recite them after the salahs and before sleep. 3. Stay away from such things. Insha'Allah, nothing will harm you.