So, all details aside, is the bag the only thing keeping you from your Thru? If that's the case I have a loaner, but if you have a bag for a 3 month trip the same bag would certainly do a thru. Sounds like there might be a little more, maybe pre-hike jitters? Fear of the unknown? Get out there and go for it. Nursing school will be here before you know it and then life takes over.