It is not wrong to have doubts about our salvation and belief in God.  However, there is a time to get past our doubts and fully surrender to Him in faith.  One of Jesus’ disciples, Thomas, had difficulty believing in Christ’s resurrection until he was able to see and feel the scars himself.  We do not have that luxury, yet Jesus says we are blessed when we believe without seeing.  Acknowledge when you have doubts, face them and then move past them because continuing to live in doubt without moving into faith can be the most detrimental choice you choose.