My question is when are you going to be reunited with your family? The state of frustration should also be considered on the other sided your wife and your children. This gap will lead to corruption.

As Muslims, we must set up our priorities according to Quran and Sunnah. It is not Islamic to leave your family for this long period. The maximum period a person is allowed to be far from his family is six months according to the verdict of `Umar b. al-Khattab.

Regarding the ruling of what you are doing, it is prohibited and an abominable act. Allah has described the believes by saying (what means):

“And they who guard their private parts. Except from their wives or those their right hands possess, for indeed, they will not be blamed.” (Al-Mu’minun 22:5-6)

What you are doing is an act of zina but  it is not utterly zina which deserved a penalty in this life. It is one of the major sins to let someone who is not your spouse doing this. The Prophet (peace be upon him) said,

“Allah has written the very portion of Zina which a man will indulge in. There will be no escape from it. The Zina of the eye is the (lustful) look, the Zina of the ears is the listening (to voluptuous songs or talk), the Zina of the tongue is (the licentious) speech, the Zina of the hand is the (lustful) grip, the Zina of the feet is the walking (to the place where he intends to commit Zina), the heart yearns and desires and the private parts approve all that or disapprove it.” (Muslim)

Islam did not put restrains of man, but it gave him various and spacious alternatives. You have the right to get married to one, two, three and four but do not have the right to violate the limits that Allah has prescribed for you.

My suggestion is that you have to reunite to your family either by bringing them to your place, going and staying with them, visiting them regularly each six or three months. If you are not able, you can get married at the place where you live.

If you cannot, you should implement the advice of the Prophet, “O young men, you should get married, for it is more effective in lowering the gaze and protecting one’s chastity. Whoever cannot afford it should fast, for it will be a restraint Wija, for him.” (An-nasa’i)

Allah Almighty knows best.