This is quite useful. But let me add some more. 1) Always carry a mobile phone with you. Logging in using gps applications available in android and iphone can show your location to your friends ( Or keep this only for very few trusted friends in real life - not those 700 "friends" in FB. Dial the police, fire and your hotel acco no: and retain them as top 3 in your dial pad, as far as possible. You can dial police with just one press if you know that it is on top. Or better save those as your short cut 1, 2 and 3 in your phone. An efficient Police system can track your phone and reach you if within city - Just say "help" atleast 2) Always tell 2 trustworthy people your Hotel location. 3) Tell them that u will call them every day and if you dont, they have to call her, if she is not reachable, to assume that she is in danger. It may be a simple case of phone battery dead, but let's err on the side of safety. (The above cannot help you in the face of imminent danger)
4) You little kung fu is not likely to scare a big bad guy. Though it is okay to learn some self defence, it may be more effective to carry a pepper spray or something more hurting , easily reachable (you cant carry it in plane)
5) Dont travel alone out side of any major city. Its risky even for men, but a lot more for women