How to overcome negative beliefs?

Hey, so I want to manifest something - specifically, I want my SP to contact me. But sometimes I catch myself thinking, “This is completely illogical and unrealistic. Why would they suddenly contact me? It just doesn’t make any sense.”
Basically, my logical mind keeps focusing on how unlikely it seems, based on the current circumstances. How do you deal with thoughts like that or stop giving them so much power? I know that constantly doubting the outcome probably isn’t helpful when manifesting, but I find it difficult to fully ignore what seems “realistic” or “probable.”
Do you have any tips for moving past these thoughts? And what is your general perspective on probability and logic when it comes to manifesting?