nepal doesn't qualify for Visa Waiver Program (VWP) program . Infact first time stamping has been harder than ever . they are taking time and looking into every small details . 2 weeks, unfortunately will not be enough . administrative processing could take weeks if not months . one of my formal employee ( research assistant ) who works in a pharma company now ( not dhoti consultancy employee ) is facing administrative processing ( had some minor violation while on f1 ) .

for 2 weeks i would suggest travelling Mexico 2 get first stamp, its a very smooth process . but as you know, things depend on individual circumstances, if you have very clean record ( no f1 violations, no social media complains no domestic violence, good work history etc ) then it should be OK .