Apply nail polish yourself require as much precision and expertise like you would need in makeup, watch this guide to perfecting this.
Something that sounds as painting the nails yourself may actually come with a lot hassles.
The 'beauty truth' is, applying nail lacquer requires precision/well defined strokes.
Spoiler alert; to begin applying the nail polish, start from the centre of the nail, then paint on the colour by pushing the brush a little forward then backward stroke then bring the applicator brush all the way forward and spread evenly for a perfect application.
Not sure about this? Watch the guide above and try it out.