I'm not a bible thumping christian ~ in fact I'm not a christian at all ~ I'm more of a buddhist ~
but sometimes when voices and negative entities are attacking or bothering me ~ I rebuke them in the name of jesus christ ~ it has worked well so far ~ so maybe that's worth giving a try
I never talk out loud so I just say it silently ~ you may have to tell them several times ~ a few times ~ or just one time
also maybe you could try praying to who ever or whatever you pray to if you do at all ~ and being specific about what problem you wish to solve ~ I have also had some success with this
I know this is not what you specifically asked for in this thread ~ but maybe it could be of help in this situation
I also pray that I will win the lottery ~ but I never win