The bike you have now is more than enough bike for you at the level you are at. A new bike in your price range will be functionally indistinguishable.
You can always get a double crankset if you don't like the gearing.
And if you crash, or should I say, when you crash in a race, at least you didn't ruin a brand new bike.
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Il faut de l'audace, encore de l'audace, toujours de l'audace
1980 3Rensho-- 1975 Raleigh Sprite 3spd
1990s Raleigh M20 MTB--2007 Windsor Hour (track)
1988 Ducati 750 F1