I am 23 years old and am considering a cross-country road trip this upcoming June. I will be starting on Cape Cod (MA) and would like to make my way all the way across the northern states, (Montana, Washington, etc.). I am estimating a maximum of three weeks travel time. Am I being completely unrealistic? Would a trip like this more likely take three months? I just have no idea how long to plan on. Also, do cross-country road trips end up costing a lot? We plan on doing a lot of camping to save money, but I just have no clue how much I should be saving for a trip like this. The whole thing is overwhelming, but is something I have always wanted to experience. Any feed back?? Thanks!