Shoshana, if you don't mind answering a few questions... I'm curious about a few things. First of all, why do you write the word God with the hyphen in the middle? I'm also wondering what the Jewish view on Jesus is, and why he isn't accepted as the Messiah. If this is off topic you can pm me, but I am genuinely curious.
Jew are quite careful with the names of G-d. The most important of all these is the actual name spelt by the Hebrew letters Yod Heh Vav Heh. We don't even pronounce that name--firstly because a tradition arose of only pronouncing it on certain high occasions at the Temple, and now there is no Temple. And secondly because we consider it too sacred.
(We took the opposite road of Hindus in that respect; Hindus also recognize the sacredness of the names they use for G-d, but many Hindu traditions encourage you to repeat names of G-d over and over. Same principle, but Judaism and Hinduism went in completely opposite directions with it.)
We have two main substitutions for the Yod Heh Vav Heh: while praying or while reading the Torah during services we use 'Adonai,' which means 'Lord.' (You'll notice that many Christian Bibles use "Lord" instead of the actual name of G-d. A few modern translations use the Name but, in most, whenever you see "Lord" in the 'Old Testament' referring to G-d, it's almost always a substitute for the Yod Heh Vav Heh.)
In more casual conversation, or when reading the Torah outside of services, we use "HaShem" instead of the Name; that just means "the Name."
Here's where the answer to your question comes in: we are very careful with the Name of G-d; we never throw out or crumple up or deface any paper that has the name written on it. We bury worn out copies of the Torah (or anything else with the Name) instead of just throwing them out.
Many Jews feel that all forms of the word 'G-d' should be so protected, and that's why they don't even write out the word 'G-d.' Because it's possible that someone could print this conversation and later toss it in the trash, I prefer not to spell out the word 'G-d.'
Other Jews are okay with spelling out G-d, feeling that only the Yod Heh Vav Heh requires protection. In general, the more Orthodox you are, the more likely you are to use the hyphen than to spell out G-d. But that's not always the case: I'm not Orthodox and I use the hyphen.
As for Jesus--the important thing to remember here is that Christians have a radically different understanding of 'messiah' than Jews. Jews don't see the messiah as a divine personage. The messiah is just as a human being who brings about a just and righteous world. (Or sometimes multiple human beings, in the case of Jews who hold with a collective messiah.)
So that's the role of the messiah according to Judaism: perfecting the world, bringing peace and righteousness throughout. That clearly hasn't happened. This is still an imperfect world. Ergo, no messiah yet.
And whatever Jews think of the idea of a messiah (some are quite hostile to it and don't believe in any messiah), we agree on this much: don't wait for a messiah; do your part to heal the world today. Help bring the world closer to perfection. This is the duty of every human being.
I think Christians agree. The Christians among my friends and family, anyway, don’t sit around just waiting for Jesus to return. They’re doing their best to make the world a better place.