He is suffering the effects of witchcraft and asking for advice
Question

My wife is suffering with bad devils and the devil is challenged me to make me poor and weak and unsuccessful person and my inlaws family are very in quantity they are 5 sisters and 5 brothers and they used to do black magic on me and aI was become ill in the year 2007 after words they all are used to torcher me with various methods like they said they wont belive that her sister or daughter are effected all brother's will try to dominate and give warnings to me to live quietly from 2007 i cant done sex with her due to she is not interested for sex in night she said she wont like these type of relations regularly after i Ill I am unable to do sex also I don't have power in my orgaqn then i used to go the our priest she used to give warter daily and i drink and sit in the shrine area for some times daily we are very small family and i don;t have father and mother I reside alone now due to they are tourchouring me i can't done one more wedding please suggest me how to escape with all these nonsence
Praise be to Allah.We ask Allah, may He be exalted, to heal you, take away your anxiety and relieve your distress. 
The advice we offer you is as follows: 
Firstly: 
If a calamity befalls him, the Muslim should hasten to take stock of himself, because this calamity may be the result of sins that he has committed. So he should hasten to repent sincerely from any sin that he has committed. 
Allah, may He be exalted, says (interpretation of the meaning):
“Seek the forgiveness of your Lord, and turn to Him in repentance, that He may grant you good enjoyment, for a term appointed, and bestow His abounding Grace to every owner of grace (i.e. the one who helps and serves needy and deserving, physically and with his wealth, and even with good words). But if you turn away, then I fear for you the torment of a Great Day (i.e. the Day of Resurrection)”
[Hood 11:3]. 
Shaykh ‘Abd ar-Rahmaan as-Sa‘di (may Allah have mercy on him) said: 
“Seek the forgiveness of your Lord” for what you have committed of sins
“and turn to Him in repentance” in the future, for the remainder of your lives, by turning to Him and by turning away from that which Allah dislikes and to that which He loves and is pleased with. 
Then comes a description of what will result from seeking forgiveness and repentance:
“that He may grant you good enjoyment” that is, so that He may grant you of His provision that which you will enjoy and benefit from
“for a term appointed” that is, until the time of your death.
“and bestow His abounding Grace to every owner of grace” among you
“to every owner of grace” that is, He bestows upon people who are good and righteous bounty and blessings as a reward for their good deeds, by enabling them to attain that which they love and warding off that which they dislike.
End quote from Tayseer al-Kareem ar-Rahmaan fi Tafseer Kalaam al-Mannaan (p. 376) 
The Muslim who is sincere in his repentance is one of the pious, and Allah has promised to grant every pious person who fears Him a way out from the hardships that he suffers. 
Allah, may He be exalted, says (interpretation of the meaning):
“And whosoever fears Allah and keeps his duty to Him, He will make a way for him to get out (from every difficulty).
3. And He will provide him from (sources) he never could imagine. And whosoever puts his trust in Allah, then He will suffice him. Verily, Allah will accomplish his purpose. Indeed Allah has set a measure for all things”
[al-Talaaq 65:2-3]. 
Secondly: 
You have to constantly remember Allah, may He be exalted, and call upon Him, which includes reciting the adhkaar of morning and evening, adhkaar before going to sleep, and so on. All of that will bring protection from the Shaytaan and his evil. 
Ibn al-Qayyim (may Allah have mercy on him) said: 
The Prophet (blessings and peace of Allah be upon him) said: “I enjoin you to remember Allah, may He be exalted, for the likeness thereof is the likeness of a man who sets out with the enemy in hot pursuit, until he comes to a strong fortress in which he protects himself against them. In like manner a person cannot protect himself from the Shaytaan except by remembering Allah.” 
If there was no other advantage to dhikr except this, the individual should never let his tongue cease mentioned Allah, may He be exalted and he should always have the mention of Allah on his lips, for he cannot protect himself against his enemy except by means of dhikr, and his enemy cannot reach him except through the door of heedlessness. So he watches him constantly, and if he slips, he pounces on him and ensnares him.
End quote from al-Waabil as-Sayyib (p. 83) 
See also fatwa no. 12173 to learn some prescribed adhkaar and du‘aas that it is good for the Muslim to learn and constantly recite. 
Thirdly: 
It is not permissible for a Muslim to seek ruqyah from a priest or disbeliever, because of the shirk (ascription of partners to Allah) and bid‘ah (innovation) involved in their beliefs and ruqyahs. But there is nothing wrong with seeking ruqyah from a Muslim who has knowledge thereof and knows the appropriate etiquette, and is sincere to Allah alone, may He be exalted, puts his trust in Him and believes that benefit and harm are all under the control of Allah, not of any created being. For more information on how to do ruqyah as prescribed in Islam for healing from the effects of witchcraft, please see fatwas no. 11290 and  12918. 
And Allah knows best.