First I feel for you. No matter the circumstances, whether you're the one initiating the breakup or not, it is never easy. So for what it's worth, you have my sympathy.
Like the others say, it is not stupid at all to reach out to others. You'll soon find that this community is as supportive as it gets to its fellow members. Lots of great people out here.
I'd like to contribute as best I can with a little piece of advice. I had my fair share of breakups before I found "the one", and I developed a little system of defense. My advice would be: don't stay alone. Resist the urge to stay at home, even though you feel like seeing no one, and get out. Keep going to work (or to school if you're not working) just as you would do normally, and find people to talk to. Friends, parents, relatives, previously befriended colleagues (don't show you're weak to colleagues you don't fully trust though). Friendly bartenders/barmaids can be great listeners too; for some of them it is even an art. Just don't lock yourself up in a shell.
Second, take care of yourself. Hell, love yourself even. Dress up well, go get a new haircut, buy yourself that gift (computer, pair of shoes, climbing gear, tickling clip...) you have been resisting the urge to offer yourself. Go to your favorite restaurant, or bar. Do the stuff that bring you pleasure or that you are good at. Go to concerts. Your self esteem needs a boost, so hang out with people who tell you that you are great, and do stuff that give you a positive image of yourself. You gotta like what you see whenever you look into the mirror.
That's my two cents. I am no expert and my advice may be slightly off the mark relatively to your situation. But that's what I would do, at any rate.
Hope you'll pull through stronger than ever before!