You on the other hand are "small fry". No-one is particularly interested in hacking around to try and find your identity; the forum is set up
not to report your IP address so other than what you choose to reveal, there is no way to identify you. Using your first name only is perfectly sensible (in fact, it's what
I do because I choose not to reveal my identity either) and as Jim says, we only really want you to identify enough so we have some idea what is going on when you come back later and tell us how you are going.
That cleared, there really is nothing about being in college that is particularly different to being at home as far as executing a program of stretching goes; even if you are dorming with another fellow you will have plenty of private time and in fact, can simply stretch while lying under the covers in bed, so that gives you two occasions per day for a start. The much more common question about such a "room-mate" situation in college is how to find private time to
masturbate.

Now I
hope you are not thinking of college as an automatic opportunity for sexual exploration with the young ladies and somehow imagine that foreskin retraction is "necessary" for
either manual exploration or intercourse (which
must in any case, be with a condom), because that really
would demonstrate naïveté on your part.

I am sorry that you encountered such an ignorant doctor. Unfortunately, that's just how the world is,
mostly doctors will be very helpful in pointing you in the right direction for health, but - not always.
You need to do the heavy reading
here on this discussion board - the information is in
many past discussion "threads". Could you also describe how it was that you
only realised how the foreskin should work last year - what factors limited your sexual experience before?