Thank you for inquiry. From what you are describing a correction is possible, although not through a simple blepharoplasty, but with the use of tarsoplasty and/or browlift. Given your young age you need a well done operation with a result lasting for a lifetime. Of course, I would need to see you and examine your eyelids and eyebrow, so as to give you a more precise advise regarding the methodology as well as the cost. Please do get in touch so as to set up an appointment.
The procedure is a variant of forehead lift with browlift, which can cost from 4000 euros, though a more precise cost would be determined during the consultation.
Given the anatomical limitations and the quality of skin due to your very young age, I would not recommended this procedure.
Another possibility is to conduct a "mini-browlift" with incision at the upper boundaries of the brows, which can create the shape that you desire. The cost would be from 1000 euros, but then again I would need to see you in order to carry out a thorough examination.
During the browlift procedure the temple area of the eyebrows and upper eyelids is tightened. Thus one's eyes may look more open, but the shape of the eye does not change.
In order to change the shape of the eyes one needs another procedure called blepharoplasty.