I know I have the bump in the middle, but is it actually BIG? Or unattractive, generally speaking. How do I correct it? (photo)

First of all, neither you nor your nose is unattractive.  If you wanted your nose reduced, the bump could be removed and tip made slightly smaller for balance by performing a standard rhinoplasty.  Again, you're an attractive young lady and I would only recommend addressing your nose if it bothers YOU.  

Hello and thank you for your question. Based on your
photograph, you may benefit from a tip refining rhinoplasty.  You may also benefit from a cephalic rotation
of your tip to turn up your tip slightly and a conservative dorsal hump
reduction.  Make sure you specifically look at
before and after pictures of real patients who have had this surgery performed
by your surgeon and not just a computer animation system.
The most important aspect is to find a surgeon you are comfortable with. I
recommend that you seek consultation with a qualified board-certified plastic
surgeon who can evaluate you in person.
Best wishes and good luck.
Richard G. Reish, M.D. FACS
Harvard-trained plastic surgeon

Every nose is different and unique to that individual. If
the appearance of your nose concerns you enough to do something about it, it
can be improved with a natural artistically performed rhinoplasty. What would
be the best option and exact procedure would depend on an in
person examination (not just an online consultation) and discussion
about desired outcome. Excellent results can be achieved with either a closed
or open technique.
Keep in mind that following advice from a surgeon on this or any other website
who proposes to tell you exactly what to do and how technically to do
it based on two dimensional photos without examining you, physically
feeling your tissue, assessing your desired outcome, taking a full medical
history and discussing the pros and cons of the operative procedure would not
be in your best interest. Natural appearing results need to be individualized
and what is appropriate for one patient is not necessarily the best for someone
else. I would suggest that you find a surgeon with extensive rhinoplasty
experience certified by the American Board of Plastic Surgery and one who is
ideally a member of The American Society for Aesthetic Plastic Surgery (ASAPS) that you trust and are comfortable with. You
should discuss your concerns with that surgeon in person.
Robert Singer, M.D., FACS
La Jolla, California