Is it risky if i choose to wear contact lenses?

i've been wearing spectacles for more than 3years. now i'm 20 years old. i only wear spectacles when i want to read what is written by my lecturers in the lecture hall. other than that, i don't wear it. i can do my activities very well with or without the spectacles. just that what makes me interested in wearing contact lenses is that my friend told me, her power for both eyes decreases after she wears contact lenses for more than a year.now she's wearing spectacles. is it worth for me to try wearing contact lenses? if yes, what type of contact lenses suits me???