If you are icing cookies, I use the Royal Icing recipe that comes with Wilton Meringue Powder. It tates really good. I put everying in my Kitchen Aid mixer and mix on STIR for 10 minutes.
To get the peferct consistency, I measure out 1/2 cup in a bowl. Next, add 2 teaspoons of light corn syrup and 1/2 tsp of water. Next, add your color. This is to OUTLINE.
Flooding, I add 1/ 2 teaspoon more of water. Next, pour in squeeze bottle. And, you are ready to flood. I like using a small silicone spatula to mix my icing in bowl I do this every time i make a color, and it is perfect. Also, i like using a small 2 cup glass pyrex bowls with lid. If you have icing left over, just pop top on and sit on counter. I always put date on icing, to make sure it stays fresh. It will stay fresh for 2 weeks.
With the help of my mentor, viedos and practice, I taught myself. Now, i love being crearive. Don't give up. Keep trying and you will get it.