I guess everybody has the desire to sing like a pro and perhaps is searching ways in how to improve the skills in order to sing as efficient as those you hear and watch on TV. Well, here is the good news; you can. There are many things you can do to start singing like a pro. It does not necessarily mean that it can take you to higher levels of your career but enough to get noticed perhaps locally. But that is a good start. You begin as a low class singer and ascend, who knows you might just be the future sensation.
You can start by honestly recognizing your voice and singing patterns. How high a note can you reach as well as how you can pull low notes up is your voice and no one can exactly do the same thing as you. A good way to recognize your voice is to try different kind of songs. Personally, my voice coach, before actually teaching me how to develop my voice, let me pick one song that I love to sing. As I was singing, he was listening intently how I used my voice to reach up or down certain tones. In the end, he classified my voice as soprano, the high voice of women. But I am not saying you need a voice coach too. All you need is perhaps a serious intention of listening to your own voice. Do not push for high notes if honestly you can not and do not reach low notes if you would only strain your cords by doing so.
There are people who were born naturally good singers as well as there are those who have to undergo tough voice lessons to get ahead. But whatever classification you are, it all boils down to one thing, PRACTICE. Even those who were born as singers need to practice to develop their voices and mold them to whatever they want. However, it is so much easier for them because they already have the skills. But for those who are honestly in shaky grounds will need a lot more tough practice and lessons to get to higher levels. Do not start if you would not be able to break bad habits but more so if you are not ready for tough training. You must be well prepared.
If in any case that you do not want to hire a voice coach, there are alternative ways for you to get that coach. First, look into your list of friends and see if one of them is totally honest and can really give you good criticism. Even if they do not actually sing, they can help you a lot by telling you honestly what they think or feel when you are singing. Of course, do not expect them to read the notes or be able to recognize any flats or sharps in your voice because that would be a lot. To hone this you need to record your voice, this way you will be able to pin point where your errors lie.