Welcome to the Fiverr community and wish you all the best. Read the following article, this will help you.
https://www.fiverr.com/support/articles/360010992257-Top-10-Tips-for-New-Fiverr-Sellers
YES, it is very much possible to get order within a week. But first you have to get clear concept about what you are job which you are offering. Then create gig with gig research, proper SEO, 5 tags and with image SEO.