If you're ready, take the test ASAP. Procrastinating will not magically raise your score. In fact, time away from college could very well lower your score, unless you keep studying, taking practice tests, etc.
Another key point - if you take in Feb and don't do as well as you want, you can then retake it in a year or two, and if there's a significant difference in your score, you can make a valid claim on your apps that only the higher one should be considered. The longer the time gap between the tests, the more valid that claim would be.