Your emotional sentiments are very touching. Not to worry, I understand your fears.
To protect yourself, I urge you to confine your hobbies to visiting the library, going to places of interest like the Bird Park, Botanic Gardens, or MacRitchie Reservoir -- in the day time of course (you don't want to go at night, they may be bad people around at night.....) And always remember to go out with a grp of frens -- you know, those who will protect u n not run away at 1st sign of trouble :-)
Never watch late night movies or stay out too late at night. Do not go to pubs, bars or disco. Those are favourite hotspots for delinquents, rascals, rude youths, even gangsters. You want to avoid those bad people.
On the weekends, the best thing you can do is curl up on your sofa with a cup of honey and lemonade and read a good book. Invite grandma over to teach you how to discuss motherhood and bake apple pie. But of course send her home before the evening sets.
If you follow my tips, you should be safe and sound :-) Remember: Low crime does not mean no crime :-)