CVS review: Second pfizer vaccine in Florida

I am 94 yo male that got my first Pfizer Covid vaccine shot on January 18, 2021 while at Courtney Springs Rehabilitation Center in Merritt Island, Florida. It was lot #EL3247. I am not longer at that facility. I am back home in Cocoa Beach, Florida. My understanding is that I can only get the second Pfizer vaccine shot via a nursing home, rehabilitation center or hospital. I have called your Covid hot line number twice and told I will have to go online and keep checking for an available appointment. My complaint is the folks that got the first shot should be given a time to get the second shot without all this trouble. I also must get the Pfizer vaccine.

Thank you for your assistance,
Carl