This is not an answer to your question, I'm not an expert in tutoring people how to deal with magical abuse, however I have been in a bit similar situation of negative influence (black magic and demons attacks and cunning manipulations), which turned me to failures or serious issues in many fields: health, relationships, business growth halted, esp skills development blocked. I basically use the same tools as used against me - power, positive beings (call them angels if you wish) and magic - in order to get things working properly, plus mandatory watching your thinking processes and emotions - without directing them into positive results you won't get to the point you wish to get to. I'v got some successes recently, not everything yet.

But let me ask you a question: how much do you know / have experience in magic?