Honestly, there's no such thing as "doing something wrong." If the spell is possible and you put your intent into it, you didn't do it wrong. And if your spell gives you your desired effect, it worked! Sometimes spells manifest in small ways, like a money spell only giving you 5 dollars because you weren't specfic enough.
Some types of spells simply won't work, whether you did it right or not. You can't really do the "impossible," like shapeshift or fly (but you can do them in your dreams or while you're projecting!) If you're new to spellcasting, I would recommend reading and researching as much as you can before going onto spells, but in the end there's no such thing as doing them wrong.
Your spells wont work. I went through your spells, "Elemental Powers, Magic Door, Mermaid Spell, Water Control. No offense but your spells are a bunch of baloney. If you want to know whats real, and whats not it will take you a whole 10 minutes of research on this site.
If you're serious about learning how to do magic and with starting from the rock-bottom then you don't start out by casting spells, you start out by learning how and why magic works.
You see, there is no such thing as an "easy" spell or a "beginner" spell. One either understands how magic works and has mastered the basics...in which case the magic will work..or you haven't done that sort of work..and no spell will work no matter how "easy" it seems.
Casting a successful spell involves much more than finding some spell on the internet or in a book, saying some words, lighting a candle, waving a wand of any of that sort of thing. In order for magic to work you need to understand how and why it works in the first place. Grounding and centering, visualization, focus and intent, energy manipulation, etc are all necessary first steps to even begin to have a chance at a spell actually working...and more importantly to prevent a spell from back-firing on you.
So, my advice for anyone who is truly serious is to start by reading a few books and practicing the exercises those books will give you. Once you have mastered the basics you won't need anyone to give you spells, you'll be able to create your own spells that will be far more effective than anything you find on the net. Here's the books I suggest:
"Before You Cast a Spell" by Carl McColman
"Spells and How They Work" by Janet and Stewart Farrar
"The Veil's Edge" by Willow Polson
"Modern Magick" by Donald Michael Kraig
And the following links in this thread will also help you learn the basic skills necessary for effective spellwork.
How to Write Your Own Spells - I just finished writing an article on the steps and thought processes of creating your own spells. You can read the article at http://www.spellsofmagic.com/read_post.html?post=829629