Well put David.
Lawstudent, David and Tyler are right, you can always let it grow back. Let's take the worst case scenario (which is highly unlikely): people hate it, and you hate it, and your girlfriend hates it. Well, you can let it grow back, and in time nobody will remember that there was a time when you shaved your head. So don't worry about it.
However, I think it's far more likely that your new looks will be a success. Something I have observed on myself and others was the fact that going ahead and shaving your head can (and usually is) a very liberating experience. You've spent so much time having attention on your thinning hair, worrying about it, exploring new ways to cover it, it's consumed a lot of energy, and it wears people out. People can't be themselves, can't be truly confident if they have constant attention on something they consider bad about themselves. Shaving it all off could (and usually does) provide a solution.
But what you've first considered a mere solution will evolve into something more - a new lifestyle and attitude, and new things will come out of it - good things.
Yeah, definitely, give it a try. Us bald guys here on the forum are here to assist you, whatever your final decision (but it better be a bald decision, my dear friend...
)
If you need any help getting started (the practical aspects of shaving your head etc.), please let us know. You can also post a picture of yourself if you like, like somebody else did a month or so ago. You'd be surprised at the positive comments you'd get on how you would look like bald.
Good luck.
Happy Harry
(and let's not forget about the fact that you'd probably be the only law student in your class who's bald. And looking sly is always an asset for a lawyer...
Professor Melon, for instance, was quite brave, for he was the only guy in his immediate circle - an academic circle - who shaved his head. And he got nothing but positive comments from his fellow colleagues and family.)