At 5'3" the OP probably would benefit from shorter cranks. At that height the difference in height at 12 vs 6 o'clock is so great that what's too high for the bottom of the stroke will also be too low for the top.
Odds are the OP will need a complete new crankset, but as LarDasse pointed out that's no issue, because since complete crank sets are usually cheaper than left and right arms bought separately. (they charge extra for removing those pesky chainrings).
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