No, sorry to say, that's not how you get a scholarship. Assuming you're speaking of AROTC, It sounds like the instructor may not have been clear that you are a junior.
Typically, you take MS1 classes your freshman year and MSII classes sophomore. If you have missed both those years, and the ROTC unit intends to offer you a contract, then you would attend CIET training this summer, before showing up in the fall to begin your MSIII year. Getting "contracted" is the only way to progress from your junior year and get a commission.
All of this is separate from receiving a scholarship. IF your battalion has money to award, and IF you are the best candidate, they may be in a position to give you a scholarship. Keep in mind, you'd be competing against kids who've been in the program for 1-2 years already and have proven themselves.
I think you need to have another conversation with the recruiting officer in your program, and make sure everyone is on the same page. Assuming you will not be getting a scholarship for this fall, you need to be clear on how you intend to pay for school as well.
Good luck, and feel free to ask if you have other questions.