:sl:
Do not delay your conversion my dear sister. From the response of your parents above, I guess they are good persons, may Allah guide them and protect them. I don't think they prevent you from doing something you are totally convinced of, if you know how to show them that you think Islam is the right religion for you, as long as you keep calm and kind with your parents. You can show them that after conversion you become more strong and successful and more self confident.
Now if you give me guaranties that you will live until you complete college, then do it, wait until that time to convert. But dear sister, it's obvious that death can come to any of us at anytime. If we know Allah, and we know the right path, how can we delay.
My humble advice to you is to convert now and just do shahada, then start slowly learning about islam and prayer, and then try to practice slowly until you become a good practicing muslimah. But don't delay to begin now.
I guess all the brothers and sisters here will tell you that, but I will let you get more posts and benefit from our enlightened brohers and sisters here.
Now let me share with you this beautiful and touching nasheed and reminder. It always helped me to remember death every time I feel lazy or away from Allah.
Keep in mind that all your brothers and sisters here want good for you and for any muslims, and want you to be safe from hell after death. No personal benefits or interests between muslims, we help each other for the sake of Allah. And we will help you if you have any question or need any resources of knowledge.