exactly Cass.....

if you want to be a good singer...its gotta be in you.....and even then its MUCHO practice....plus interacting simultaneously while your playing an arranger is a whole nother LEVEL to get it right....it takes a lifetime of dedication & constant practice if you have the foundation to start building your talents. There is no easy way ....but if YOUR the ONLY one who will listen at home then its a totally different story...but what I say above still applies to even make it a decent sounding performance...I cant stress enough to find your comfort zone for your voice and correct vocal KEY RANGE low & high for EACH song.

Good Luck & save you money on a pitch correction gadget