Not to be a downer, but yes, unfortunately you are. Your options are to:
1. somehow increase your score above 510 (to be safe), and hope for FSW to resume. Personally I do not believe FSW is coming back, so based on your opinion and understanding, be aware that any steps you take to increase your CRS score could eventually be completely meaningless.
2. Get a degree in Canada, preferably in IT. There is still a risk here, but at least if you get an IT related advanced degree and get a year of experience, 400+ CECs have a much better shot at an ITA than FSWs ever will regardless of the score.
There are no good options, but ultimately it does make sense to do something, since doing nothing all but guarantees you will never get an ITA.