Yes you can. It's easier to use a small amount of the eliquid and flavor to taste. Make a note of the percentage of eliquid to flavoring once you get the taste right and use those measurements to flavor the entire bottle.
There are several other brands you could try....Capellas, Fairies Finest, Bickfords to name a few.
If you've just started vaping your sense of taste and smell will change When I first started most stuff was just kind of blah, but that chaned along with my taste buds Get a strong liq to vape now so you can taste it, but don't get rid of the ones you have now, later you might like them Whew Try some red hots from dawn's RIMP
Maybe try adding something strong and overpowering that you can stand in the perfumy ones, maybe? Perhaps licorice, cinnamon, or something else not-fruity or even a little perfumy itself would salvage what you'd otherwise have to throw away.
Then again, if it's a bad or contaminated batch, maybe throwing it away is better. >.>