By using a few simple tricks, you can make Candy clicker a pretty simple game. Here are some tips and tricks that will help you get Candy Man, the best improvement, in less than 30 minutes:

Click as quickly as you can
At first, the only way to get more candy is to click on the candy in the middle of the screen. You get more prize points the more and faster you click.
Use a mouse instead of the trackpad to improve the speed of your clicks -- this is a good tip.

Find gold 
Every minute or two, a gold candy will show up. You must click on this when you see it. If you don't get it in time, it won't come back for a while. These candy bars made of gold are really expensive. It will slowly lose value in points, going from a few thousand to millions by the end. So, of course, you should be careful to gather them.

Regularly upgrade
It will all be on the right side of your screen where you can choose to update. If you want to click candy faster, you should first move your mouse. Once you get about 25 candies for every click, you can look at early upgrades like the Candy Farm and the Auto Candy update.

If you have to wait more than three minutes for a new upgrade, you should probably just work on improving the mines and plants you already have.

Keep your tab open
You will get more points from your candy mines and farms as you play Candy Clicker more. You will no longer have to click to score points. They work great even if you leave or start another tab. For that reason, keep your tab open so you can use the changes you've earned.