looking into buying a mic to record vocals. looking for something cheap but effective. dont wanna buy a piece of crap. are there any good condenser mics for under 100? suggestions please THANKS!

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I NEED HELP! this is my first dubstep song ever and im trying to learn how to mix properly. ignore the crappy composition im just trying to figure out what im doing wrong. why does it sound so childish and empty? thanks in advance