LSD and mushrooms are a good platform from which to start your psychedelic adventures. Just start low and work your way up. I am sure you will have little problems finding either one in college.
Don't ever feel bad about your interest in psychedelics. I think in the near future you will see a wider acceptance of psychedelics in the mainstream. These substances are great tools for healing and expanding the mind and more and more people are beginning to accept this.
Don't build it up too much in your head. Relax and try and enjoy your experiences. Pay attention to how you are feeling when you use them. Observe what your mind creates. The nexus is a great resource for information and assistance. Check out the chat room and talk about it. Learn as much as you can about the substances you are interested in trying.
I recommend you incorporate meditation into your daily life. Meditation will assist you in quieting the mind and allows you more control of your psychedelic experiences. Try 20 mins every day. Pretty soon you will look forward to your meditation sessions. Meditation will not only help with psychedelics but also will help with many aspects of your life.
Good luck in your pursuit of the trippy world of psychedelics!
"In the universe there is an immeasurable, indescribable force which shamans call intent, and absolutely everything that exists in the entire cosmos is attached to intent by a connecting link." ~Carlos Castaneda