How come the religious beliefs i have (catholic) that i'm very hard on myself beating myself up over really nothing i do [Spirituality & Religion]

I rarley mess up and that's not an ego cause I enjoy my sleep .
There a prayer there and it says " I renounce evil spirits and all its works . I give you my entire self to Jesus"
But I'm after getting scared of where it says it's evil spirits cause a lot of evil was done to me and it came through .
So I'm supposed to give myself to Christ after all the evil is done .
What's the purpose of having a belief when evil things be done to you by humans