Referring to text ads specifically, lets talk about quality and groups. Go here for a text Ad reference.
What makes up a text ad?
You need a headline, one or two description lines, a display url, and the actual url.
Tips for creating successful ads
Using this good reference I would advocate the following tips.
Leesa graduated with both a Bachelor’s Degree in Web Design and Development and a cosmetology license. Her experience in business operations as well as web and software development, digital marketing, and graphic design comes from managing salons, running independant businesses doing contract and freelance work, teaching as a bootcamp instructor, developing independant projects, and over five years of professional experience as a software and web developer.