Are you finding it difficult to get to know your fictional characters and/or differentiate them from yourself? Try this: Choose a character from your project and let her/him take a walk into a place you know well. Then describe this place from this character's perspective and ask yourself:
What does (or doesn't) s/he notice?
How does s/he feel about what she notices?What thoughts do the things s/he notices trigger in her/him? This can be memories, social critique, enjoyment or disgust etc.
How do your character's impressions of, and responses to, the place differ from yours?
Set a timer and start free-writing from one of your character's perspectives. Try to really get inside their head - what do they want, what ticks them off, what do they feel passionate about? Are they writing in a diary, telling a story to a friend, or dictating a formal letter?
Write a pivotal scene in your novel from a different character's POV. For instance: at a funeral, you may have written the grieving widow's thoughts and feelings. Write about that funeral from the deceased husband's POV, the eldest son's, or the step-sister's.