Hi Ashley & Welcome! You have an awesome profile and testimonials to start. Just 1 nit pick: the title "Visits" is misspelled. Just a more polished professional look.
Some suggestions to help or suggest: Check your zip code and surrounding zip codes to see how saturated with rover sitters in your area and their rates. I would also suggest stating "how long (years) you have been pet sitting/dog walking/pet care" including any other pets you are willing to care for on visits, in your profile - not just with rover- but for friends, family, neighbors, etc. even if you didn't charge for the services.
Do post on CL. Some sitters have success with it and others don't get much if any.
On the internet check out hotels/motels/extended stay that allow dogs in your area/radius you are willing to travel. Take your cards and introduce yourself to the front desk, explain your services and leave several cards. People that travel with their pets go to events, sight seeing, etc. or want a nice sit-down meal where they can't take their dog(s)
Check out restaurants with patio seating that cater to/allow dogs, talk to the managers and ask to leave your cards. There are fast food and other restaurants in AZ that encourage/allow pet parents to bring their dogs and some that even have "something special or menu for pups": Starbucks, Culver's to list a couple. Just type in the search "dog friendly restaurants" and you may be surprised what comes up!
Connect with rescue organizations, go to adoption events and hand out your cards; Some gas stations may allow you to leave your cards but make sure to talk to the manager or owner because some don't allow business cards.
I did a lot of leg work to connect with pet parents and you have to be patient but it does pay off.
Hope this helps!