chin up man!  let me tell you something.

First of all, studies show that people who  suffer from depression are usually much more intelligent than the average person.  Your mind is working too much on a particular subject, yours being in this case your new look.

No one is going to be able to convince you to be confident, you have to convince yourself.  you need to understand that everyone in this world has insecurities about themselves, but some people are able to accept them more than others.  Next time you look at someone you think is "judging you", look at them closely and see if you can guess what they are insecure about.  i'll bet it is something, whether their eyes are too close together, their nose is too big (thats mine), big chin, crooked teeth, etc.......   Just because you are man enough to accept your personal issue, doesn't give them the authority to pass judgement to you.  YOU ARE BETTER OFF THAN THEY, if you can do that.

I know more younger people than I (Im 36) who have shaved their heads than I do older.  I just shaved mine a few days ago, and I think I'm going to like it.  It may take people who are used to seeing you a certain way to get used to it, but they will.

Chin up man!  You will be better than O.K.