If you would like to design quick things by your self without need to hire designer to do the job, then you need to hire Canva.
Canva is great solution for quick design for your social media or either to create your custom invitation or other type of printable or digital artwork.
Used over your desktop in browser from the following link : https://www.canva.com/
or by download the app into your ios device ( iPhone / iPad ) from the following link : https://about.canva.com/iphone/
and now enjoy all type of design with your new tool to help you do good design in quick way .