I have a steady hand but liquid liner has always been a huge struggle for me. However, recently i discovered Master Precise by Maybelline and I can actually get away with a pretty good cat eye. recommend this affordable liquid eyeliner.
NYX Professional Makeup Vinyl Liquid Liner - Black - eBoots_UK
Get bright eyed in a blink with NYX Professional Makeup opaque, water resistant White Liquid Liner. Perfect for the lash or waterline, the precision brush helps create a defined white line, leaving you with standout eyes and a lasting matte finish.