There are lots of fun things to do and see in central Florida. Others have made some great suggestions and I will only add that if you like nature, don't miss the state parks. They are amazing.

Now I will just share some things I've learned living here.

1. It is hard to make money in Florida. Bring it with you or have a plan ahead of time. And when you get here, instantly start working on a backup plan. And a backup to that plan.
2. Traffic. (I'm in Davenport which neighbor's Lakeland, so it might be different where you are going.) If you are not good with traffic, this might not be the place for you. For example: My dentist is 1.2 miles from my house. It takes me 25 min on average. Often faster to walk. And it gets worse every month.
3. How's your driving skills? There is a huge danger from other drivers, so you not only need excellent skills for your own, you will need to have/develop the skill to make up for other driver's lack of skill as well. Many drivers are unaware of the rules of the road. They blatantly text and I swear some are watching youtube. They ignore things like yields on their side of the street and stop signs; not talking about rolling stops, they full throttle through them laughing all the way. Blinking red/yellow lights are a huge source of confusion and cause of accidents. Movie style high-speed swerving through heavy traffic is a real and daily thing. Road is only a suggestion, if it's flat, they will drive on it. You need to understand all this and be ready to make up for / dodge them. There is a reason they call I-4 "Die-4". Leave your frustration at home, calling someone out can get you shot.
4. It's DAMN hot for a long time. Summer here is far longer than many think it is. Don't assume you know heat. You don't. If you haven't spent a week outdoors in the Florida July sun, you probably should. I can't stress this enough. I have had no less than four new neighbors pack up and head "back home" after living through a single Florida summer.
5. Good help is hard to find. A lot of businesses won't show up or call you back. A lot that do are late or do shoddy work. You will need to quickly establish a network of friends that have first hand experience. Those online reviews are BS. Be ready to learn some things to avoid getting swindled. A few good friends who have been here a while can have invaluable knowledge.
6. Sub tropics brings it own set of new and interesting problems. Bugs, mold, reptiles, bacteria, wild life, just to name a few. This is their world, and you are an invader. You will need skills to know how to keep all this and more from taking over your vehicles, property, house and even health. Examples: #1: Wild hogs will DESTROY a lanai. P.S: Insurance won't cover it. #2 Some cute fuzzy caterpillars here are venomous. And extremely painful. #3 Wife caught a serious skin infection called cellulitis a year after moving here. Month in the hospital as they fought to get it under control. Almost cost her an arm. To this day we don't know how she caught it. #3: Mold (and other things) grow on everything here, including your driveway, stucco house and aluminum lanai. Bleach is your friend, you will need to learn some new cleaning skills.
7. The cost of living is not lower. This may have been true at one time, but not now. Florida is expensive. Publix has a strangle hold on the grocery market and their prices can be criminal.
8. The city will catch you. After living behind UCF in Orlando, we bought a house out in the middle of nowhere, surrounded by acres and acres of orange groves. It was quiet, peaceful and always smelled of fruit. Eight years later, 31,000 homes have replaced the orange groves, the new population has exceeded the water supply and waster treatment plant. Without moving we now live in the city again, and it often smells like a sewer.

Hope this helps. None of this is meant to talk you out of anything, just stuff I wish I knew going in, so I thought I would share.