Congratulations!!! It is not silly at all. There is a big difference between that 300 and that 299 - kind of like turning 18. It may just be a number, but it is quite a symbolic one!
EXCELLENT news! Simply excellent. You must be beaming.
And I don't think it's silly - at all. It's a VERY big deal, and it's worth celebrating. Keep up the good work. Just keep on going. One milestone after another. Keep building them up. One on top of another, and before you know it ..........
Congratulations and do enjoy your 2 hundred something pound self.