First of all, just to clarify one thing, secular =/= anti-Christian. It just means that no religion is supported or opposed.
I think college is a great way to gain knowledge. As long as you're not against learning, you'll do fine in college. If what you believe is really true, it will hold and even be supported with the additional knowledge you gain. Be critical, demand evidence, and no one will be able to lead you into false beliefs.
Your beliefs will be challenged many times, but not necessarily your spiritual beliefs. You can leave college just as strong a Christian as you are with nobody telling you to stop, yet still have a completely different outlook on life.
I'm not sure about every school, but at my school there's no requirement to take any classes on evolution, philosophy, or religion. I don't think evolution or philosophy are bad things to take a class on. Like I said, if your beliefs are really true and you use critical thinking to approach new ideas, they will stand up to any untrue thing anyone else says. I think it's valuable to learn what other people believe about things, especially when they believe something very different from what you think.
As for the religion classes, they're a bit of a crapshoot. I took an intro to humanities class that had some education on different religions. We had guest professors teaching, and all but one was really good and respectful of people's beliefs. The crappy teacher basically spent the whole class telling us Christianity was stupid. It was offensive and had no educational value in the slightest. Many of my classmates complained (including me), and he no longer is a guest lecturer in that class.
If you can handle the possibility of a teacher hating on Christianity, I think religious studies classes are useful. When done correctly, there is no intent to convert you to or from a religion. They just want to give you information on different religious beliefs and practices and how they relate to various topics, so you can have better knowledge about the world. Usually, they want to expand how you think about the nonreligious topics they talk about by teaching how other people understand them. They DO NOT endorse pluralism, only tolerance. Pluralism is the belief that all religions are correct. Tolerance is the belief that all religious beliefs can be respected, even if you don't agree.
religioustolerance.org is a good site that does not support or oppose any religion, including pluralism, but does provide information on different religious beliefs. It is not anti-Christian. (One of the creators is a Christian.) If you're interested in learning about other religious beliefs without having to worry about the possibility of someone denouncing yours, I would recommend visiting that site. I like learning about religions in a non-coercive way (hence why I'm here) and I find the site very informative.
This may not be true for every school, but at mine there are a myriad of groups that cater to Christians of many denominations. If someone sees that they are not represented by any of those groups, they can start their own with little difficulty. If that's not the case for your school, you should still be able to start a group that's not affiliated specifically as a school club.
One thing that's rarely addressed is the issue of church. Many college students go to church less frequently when they're in school. If there are no churches in your area of your denomination, you might be able to start a bible study with like-minded Christian as a sort of temporary replacement. I think most schools have plenty of churches in the area though. (Mine even has one on-campus.)