Adwords can be very benifical as you targetting specific people and qualified traffic.
It is very important to your costs that correct keywords and phrases are chosen, especially NEGATIVE keywords. It brings an instant stream of traffic and helps whilst organic traffice is being generated for new websites.
Meanwhile, focus on
SEO for the site........this brings the best traffic of all, which is FREE organic traffic.
Im assuming that it is the Virtual Assistant site in your signature? Read up a bit on
SEO, this will be vital in getting your site ranked and seen by the web users.
Cheers