A few questions about photography?

[Perki88]

It's wonderful that you are young and have found something that you love so much. You have an advantage over many people because you have so much more time to learn the skills needed in a highly competitive field. Since your main interest appears to be portraits, I suggest that you learn proper posing and angle techniques. Also, be very aware of in camera cropping and backgrounds, you have clipped off important areas in several of your images and some of your background would benefit from a shallow depth of field. Next you need to learn about the proper use of lenses, I see you have used a wide way too close to some, distorting their features. Then you need to purchase and learn the proper use of external lighting, a must for portraiture. Harsh shadows along the edge of your subject will be eliminated. This is just a few of the beginner errors I see in your images that would need correction before you even consider pricing , but the good news is still that you are young and have lots of time to learn what is required.