Recite two to three malas of Black Manjushri a day. This will help, and it came out very beneficial for you to practice this.
The other thing that you can do is to recite the sutra taught by the Buddha to Ananda, called Yang pa tong tru do in Tibetan. This is a very powerful sutra. It helps mainly with harm by spirits in villages and towns, where people are harmed, and even the doctors can’t see what the problem is, because they don’t know about harm from spirits. This sutra is very powerful in stopping that.
But, for you, Black Manjushri came out more beneficial. This is also general advice on what can be done for other people who have the same problems and difficulties. Also, they can check with a Lama.