Visa Stamping from Canada/ Mexico

I need everyone’s suggestion please. I went to USA on b2 visa and successfully changed my status to f1. After getting my f1 change of Status approved I decided to get my first f1 stamping from Montreal Canada on 13 September. Now at the time of interview I didn’t presented my I-797 as I thought if visa officer will ask me then I’ll give it him, but I told him verbally that I am here for change of status stamping. After a short interview he said that I am approved and I’ll get my passport in few days
1) what’s your status in Canada ?
2) who is sponsoring you ?
3) how u got to know about this collage and I told him that I personally visited the campus bla bla bla and then he asked that u went to collage while being on b2 I said yes
3) where is your family ?
. On 15th September i I got an email from consulate asking me to submit ds-5535 which includes 15 years travel history, social media etc. 2 days later they sent my passport back with 221g yellow slip stating that my application is under administrative process and I’ll get an email from consulate once process is completed, since then I have got 5 updates on my case but status is still showing administrative process.
Date changed on 18th September
24 September
25 September
26 September
30 September
My classes are starting next week and I have written them number of emails but I always get standard response. Now my questions are that
1)will my application be affected if I haven’t presented them with my approved i-797 but I mentioned them verbally and even in ds5535 I mentioned it. Visa officer never asked me for it.
2) can I still enter USA on my b2 visa in case my this application get delayed or rejected. Even tho I changed my status to f1 and got approved for it.

I need you all to please take out a moment and suggest me that what should I do.