l ask this because l wanted to start wearing contacts, l am nearsighted and it is very frustrating to not be able to see things clearly that are not even that far away..But l also have this theory that if l started wearing them and and they were on my eyes helping me say, take a test when l could do that clearly without them, my eyes would get used to them and start to depend on them more, and l would even need them for upclose things...Is this possible??

No. It is not like a crutch. Your prescription lets u see the way u r supposed to see & ur brain likes to see correctly, so if u do use the contacts or glasses to get 20/20 vision it makes ur brain happy. Your eyes will progress in their myopia & ur vision will have normal ch ages that r the same no matter how much u wear or do not wear ur glasses because this is 99.9% heredity that is happening here. Your misconception is very common & many people walk around not seeing well because they think this. That is sad when u r missing so much of life by depriving yourself of good vision.