In terms of mindset, I understand your frustration completely.

I lived in Florida for over a decade, and just couldn't see myself hiking in Florida. It just didn't look like any of the hiking pictures I saw online on in books. It doesn't have majestic desert canyons, wintry mountains, or beautiful, sprinkling creeks. Most of Florida is prairie, marshland, or flatwoods. You go from sea level to below sea level for hours on end. Most of it can look very similar, mile after mile. It felt like the boonies of the hiking world. But honestly, after experiencing dramatically different hiking environments, I came to appreciate how unique Florida really is. For example, you'll be strapped to find mangrove forests anywhere else in the country.

That would be my first tip. First get out to a dramatically different environment and come back. You'll see Florida very differently, because you won't be restless for the BIG hiking experiences. Try desert or hill country, and scratch off that itch to do what everyone else is doing.

If that's not possible, then here's my second tip: learn to be okay with yourself. Another poster said it here, and I agree completely: Florida hiking is all about you. There's nothing to distract you. You can't use soul-lifting vistas as entertainment. You won't have major predators to worry about. You have to come back to the real essentials: you, in nature, for an undetermined period of time, doing next to nothing. After you're okay with just sitting outside and breathing the air, and just doing that... well, then Florida hiking becomes great.

Practical tips: I hike in the summer, but avoid super high-humidity (it'll exhaust you if you're not used to it, because it makes it hard to breathe), prairie (too much sun; heat stroke). I make sure to have insect repellant if I'm going to swampy or flooded terrain. I'm rarely out for more than 6 hours straight in the summer, and leave the really long hikes to "winter."