Do not take this as a recommendation to start 'studying' for the LSAT, but I don't think it would hurt if you bought a prep guide over the winter or summer holiday and gave it a read-through so you knew what was going to be on the exam, preferably before you took those philosophy courses that concerned logical reasoning. Purchase one of the previous test books and when you get an hour to kill every so often just work through a section. Approach it as something to do for intellectual entertainment like a crossword puzzle. Later, when you then take philosophy courses in logic and reasoning, knowing how the test questions apply to what you're learning will help reinforce what you're learning and how it can help you on the test. Then during the summer between your Jr/Sr year, when it comes time to actually buckle down and prepare for the test, you will probably find it a lot easier than had you not.
Meanwhile learn to relax and not be such a Type-A personality, or you'll have a massive coronary or panic attacks by the time you're in your early thirties. Don't even bother trying to argue with me on this point, your posts in this thread scream Type-A feminine hygiene product bag.