Singing might not be for everyone but if you are interested in being a singer there are certain things which you have to accomplish first. You will have to start seeing a vocal therapist who can help you maximize your vocals. Here are some factors you must consider or focus on:
The quick fix
If you want a quick fix for you voice say A-E-I-O-U and look at the jaws moves while you stand in front of a mirror. You can even try doing this by putting two fingers inside your mouth and pulling the jaw at least down to 2 inches. This will help you say the vowels out loud much better too. You must keep repeating this in order to maximize the power of your vocals. You must make the jaw open to the position where the vowels are at. You will have to practice a couple of times before you notice a difference in your voice too. Make sure you take sufficient singing classes too.
Focus on the high notes
You can focus on the high notes by lowering down your vocals. This works very much like a lift or escalator. An elevator works when the person goes to the top floor the weight is pulled down and when the person reaches the highest floor the weight is at its heaviest. You should try your best and think down from the high notes too.
Add more power
You must try your best and add more power. You must add this technique and apply as you go along. You will have to start by keeping your chin area pointed down and your pectorals slightly flexed. Most people will start by lifting their chin but this is wrong as it can cause a strain. You must start by placing the chin down. This will actually preserve your voice too. Make sure that you do not let your head bob up and down as you sing too. Keep the head in place. You will have to sign up for singing classes at a professional studio or teacher before you become any good! Link here http://www.diversechoreography.com/performing_arts_school/musical-theatre/ to gain ideas about the classes wherein students will be able to perform classical vocal pieces from a wide variety of material.
Get a natural vibrato
It is important that you try your best to focus on vibrations. You can start by standing in front of a mirror. You will have to first place the hands in front of your chest. You can start by singing one note and holding it for as long as you possibly can. You can then try pressing your chest and making sure that the pressure meets the chest area. Try your best to relax and keep your jaw open as much as possible. Keep in mind that you must end your phrases in a straight tone.
Keep in mind you will not master singing in a day always sign up for some classes first!