I definitely think that you should talk to your parents about this.
I don’t think that you should worry about the cost of the plane tickets plus the deposit that you have already put down. This is a very small percentage of the total cost of four years of university. It is more important to get the four years of university right.
That being said, I am thinking that you might want to give Colby a chance.
We were looking at small universities in the northeast (including the northeast of the US, and eastern Canada). As such we did look at Colby as well as at Bowdoin College. Colby is a very good school. We didn’t choose it partly because of the cost (for us, based on what we saw on the NPC) and partly because of the randomness of admission at highly ranked LACs and universities in the US. However, it is a very good small school, and it seems that you are already past the admissions part and you seem to have figured out that you can afford it.
One thing about small schools is that you get to know your professors, and you get to know your fellow students. Smaller classes allows more interactions between professors and students. The academics at Colby is top notch. You will also find your way around campus quickly and get to know the local restaurants and so on.
When you arrive for your freshman year, there will be a lot of other students who are in the same situation as you. There will be many others who don’t know anyone on campus, and who are far from home. Even students who are from Boston or New York will still be too far from their families to see them (and you will be able to text or phone your family just as well as if you were from Boston or NY). As such there will be many other very smart and highly motivated students to talk to and to get to know.
I spend quite a bit of time in rural Maine. I find the people here to be very down to earth and solid hard working, honest people. I think that you are likely to like it here. It will also give you a view into another part of America – which is of course a very large and very diverse country.
As such I am thinking that you might like Colby a lot more than you think.
“But please, if you do plan to go to Colby, then don’t plan to ‘fail,’ meaning transfer in this instance.”
I agree with this. If you do go to Colby, then plan to succeed there. Also, don’t start any class at a LAC or university as strong as Colby without planning to work very hard and keep ahead in classes. It is an academically strong and academically very challenging school. If you really are certain that you won’t stay there more than a year, then you might be better off cancelling your enrollment, losing your deposit, and starting at community college in California in September.