What about planning a semester abroad in Israel after seminary too?
You can keep it in mind while you’re in seminary, to give yourself something to look forward to while you’re in the program.
Plus, you’ll still have Israel-time for personal growth, as you develop your college footing. Since you’ll be a freshman, there may be unique scholarships open to you.
Also, maybe LU knows more about this, but you may be able to find a frum community of college girls who you can dorm with in Israel.
You can build the life-experience in this setting, observing the mitzvot while still in college, and apply it to dorm-life when you return home. It could help you feel confident that you can keep your religious footing, which could help you keep strong when the time comes for you to transition to a more secular environment.
Just another idea to help you balance your experience and growth.