For now all elements show btc will rise thanks to the G20.
I don't believe that's actually the case. First the market was said to be going down due to South Korea, then due to China's new regulations, after that the SEC was causing the market to go down, and then MtGox, and then G20 and Google. It's just the result of people paying too much attention to what the news sources want you to believe. Bitcoin may just have bottomed out, where traders gained back enough confidence to enter the market again.
Currently two things matter for me;
1- Is the short term demand strong enough to push the market over the $10,000 level again? I would say likely.
2- Is the short term demand strong enough to maintain $10,000 for a longer period of time without diving under that level again? Not likely.
I am still of believe that in order to break through this uninspired market, a bullish trigger is definitely needed. As long this bullish trigger isn't there, the chances for a real breakout to happen are very low. In a market as speculative and hype driven as the one from Bitcoin, it doesn't take long before traders get bored and start unloading coins again.
You are right, we have to view the positive side of bitcoin always as this will give you such a better life that you are not expecting most, so give yourself at least some years to hold bitcoin so you can see the positive outcome on it. Make it a vision, don't let those negative news ruin your decision.