"felina" is "feline/felid" = of or relating to cats;
"yo amo ser una felina integrante de acuarius"
"acuarius" here is not clear, it could be the zodiac sign, or any association holding that name, I'm not really sure. It's a bit ambiguous.
I think you helped, you cannot make miracles with that kind of sentences! It must be the sign(I didn't think of that, even though I'm an acuarius too). I'll try a free translation. Thanks, senorita!!!