Dun worry about it...presentation and image can easily be learnt...if you want to. Bad things happen in life, even to saints! It's just life, that's all. Dun blame yourself or god.
Good U went to make a report!

Yes, I know it's a bother, but better safe than sorry. Did you keep a copy of the report, and get the officer's name or badge number (V. important).
Don't be disheartened, because since it is not an immediate situation (like they are coming to your house now and said so, or are hanging around your void deck), so what they will probably do is take their time to investigate. They can only investigate if they have specific addresses/location details, if not, it may take a long time, and priority will be given to other cases.
The purpose of making a report is so that the authorities know, and if something developes, it MAY be easier to build up a case since you have already lodged a report. At worse, if anything happens to you, the people in your report will be suspects.
Make sure some very close friends/relatives know the full details (name/address etc) of your situation. Better still, give them a photocopy of the police report because the details and report reference number is the most important thing.
Other than that, please take the trouble to ALSO report ANY further discussions, conversations, messages where a threat is made against you. But like I said, unless there is an immediate PHYSICAL threat, your case may not be regarded as urgent so don't expect the police to jump up and speed off in their patrol cars!
Just be kia su lor! Do you have any friends/relatives/friends' relatives/friends' friends in CID? If got, ask if you can have a short chat with them and see what they say lor!
Afterall, you are only trying to protect yourself!
Hope things work our for the best.