Now that you have decided to attend school at Oregon State University, here are a few things you should keep in mind before you board the flight:
Get Straight pin plugs adapters.
If you are getting a phone from India, check if it's going to work in the US. 5G and LTE bandwidths are sometimes different (https://willmyphonework.net/).
Its advised to carry a pair of traditional wear.
Look up terminal maps for any transit airports (London Heathrow can get tricky at times, personal experience).
Try not to bring rice, meat, fruits, seeds in any form, you can buy them here (I lost jeera and my friends had to leave rice during immigration).
If you are bringing more than one bag (which mostly is the case), keep some clothes and essentials in both bags.
Sleep well before your flight (it can be hard, but try).