Question Summary:
How can I save myself from my nafs and shaytan?

Question Detail:

If nafs or shaitan(devil) tell me to do haraam thing for example tell do intimate relations  with girl at that time how i can save myself and please tell few tips of nafs and shaitan to save myself and become good and if their is any book in english  on nafs and shaitan tips please send to me please. 

Answer :

In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.
You did not mention how you manage to get so far involved in such a situation because once you become so preoccupied with intimacy you aggravate your own thoughts. It is essentially bringing a difficult situation upon yourself and then trying to extract yourself from it.
The Quran orders us to keep away from all avenues that would put a person in a situation like that, such as places where you could meet with women and be alone with them:
وَلا تَقْرَبُوا الزِّنَا إِنَّهُ كَانَ فَاحِشَةً وَسَاءَ سَبِيلا
And do not approach unlawful sexual intercourse. Indeed, it is ever an immorality and is evil as a way.
(Surah Al-'Isrā', 32)
Ahmad Shawki, the famed poet has succinctly described the end result of such intermingling with non-mahrams in the following couplet:
  نـظـرة فابتسامة فسلام ... فـكـلام فـمـوعد فـلـقـاء
A look, a smile then a greeting                                                                                                     A word, a promise then a meeting
Mufti Ebrahim Desai (daamat barakaatuhu) has mentioned very effective tips in his talks about avoiding the traps of shaytaan.
For details please refer to the following talk (especially the last few minutes):
1. The attacks of the Shaytaan - Audio by Mufti Ebrahim Desai daamat barakaatuhu -
http://daruliftaa.net/index.php/resources/downloads/finish/59-thursday-night-majlis/644-the-atacks-of-the-shaytwaan-a-aug-21-2014-7-35-21-pm
Another talk that also has practical tips to apply (especially after the 28^th minute) is:
2. Consider the Shaytaan as your enemy - Audio by Mufti Ebrahim Desai daamat barakaatuhu -
http://daruliftaa.net/index.php/resources/downloads/finish/58-2013/571-07consider-the-shaytwaan-as-your-enemy-aug-1-2013-11-59-50-am
Finally, regarding the traps of the nafs please read the following inquiry that was answered earlier:
http://askimam.org/public/question_detail/29206 
Sohail ibn Arif,
Student Darul Iftaa
Chicago, USA
Checked and Approved by,
Mufti Ebrahim Desai.