You can definitely learn to sing in ways that are damaging to your voice or don't sound good. That's why it's so important to get feedback from a professional, like a voice teacher, if you want to improve.
They can, but it definitely should be avoided if possible. The choir director should be aware of all sections of the choir when conducting. This is quite tricky to do...
It is impossible to sing without breathing, but you can certainly increase your breath capacity and breath control. One of my favorite exercises is to take a deep breath and...
When you're singing into a microphone, hold it about 1 finger distance from your lips, at a 45° angle to your mouth. You want it to be almost close enough...
It's normal for some people's voices to sound different when they use microphones. If it is really distorted, try another microphone to see if the mic itself is the problem.
Slowly work on your vocal range. Start by increasing it slowly over a long period of time and work your way up semitone by semitone until you are able to...
Theoretically, yes, but some people will have voices that are better suited to the high demands of opera singing. It also takes a lot of training, so be prepared to...
Schedule times where you can practice every day to train your voice. It can also help to find videos online of coaches and vocal exercises so you have something to...