I just got a roller from Performance Bicycle shop and it looks really scary

I managed to figure out how to get on it, once you get the hang of it, it is pretty easy. The only thing I did not like is that it feels much harder than cycling out doors. I only cycled for about 20 minutes and was out of energy, and what is worse is that I was only going about 12 miles per hour. What Gives?

Are Rollers harder to train on than an actually road?

Also, how many of you guys use special tires or wheeset for rollers? I don't think it really warrants new tires but would like to hear everyones take.

I keep an old set of tires around for when it's time to use the rollers. As for the extra energy, you're probably overheating unless you have a fan infront of you. This will make you feel tired a little quicker. Also, if you have a death grip on the bike from being afraid of rolling off, you need to relax because being tense isn't going to help anything. You'll get the hang of it and it'll get easier.
I have no theories as to why you were only able to keep a 12mph pace, that seems a bit odd.

I think the difficult part may be because they're new to you. Rollers are actually easier than riding out on the road. Just keep it in a low gear and work on spinning as well as a smooth pedal stroke.

I don't use special tires and wheels per-se. Rollers are much easier on tires than trainers. However, I do mount some old tires for roller use in winter just in case.

Rollers will square-off your tires.
I generally inflate my tires to the max pressure to ride the rollers. 100 PSI is great for conforming to pavement incongruities, but rollers are perfectly smooth. It helps reduce tire wear, especially if you ride the same tires on the road.

I can ride my resistance rollers at around 30 mph. If yours are that hard to ride, make sure all the belts are in place. Occasionally mine will move off-center, and it's noticeably harder.

I also use an old pair of tires for my rollers. Effort wise, the rollers should be easier than being on the road. Maybe you are going slow because you are being too careful? I was intimidated by them too, but I think that's what makes them more interesting to ride than a stationary trainer. Why are you using rollers in the summer, are you in the southern hemisphere?

Nah, rollers suck. Who wants to focus that hard on being centered and smooth when you're trying to watch reruns of Everybody Loves Raymond?

Thanks for all the tips guys! I will work on it and I'm sure I will be able to roll on for forever.

Yes, I do live in the south where it is 105 degrees outside with 98% humidity. I am epic lazy so I can't get up early enough to ride, by the time I get up, around 10am, it is already 98 degrees outside. I also tried waiting for the sun to go down but then it's get to dark :/

It's just freaking unpleasant to ride outside at this time of the year around here.

Watch something else.