Do I should invest some?
I have to disagree, even though the market is green, the price of bitcoin is already quite cheap so you need to buy and not missed the opportunity when it goes to another rally. Its continues to fluctuates, meaning there are still sellers out the who wants to get out. So don't wait till the door closes us, this is really a good buying opportunity as far as I know.
Another good suggestion. Test the market and see how it goes for you. Buy in small portions and monitor where the market is heading, and buy more when it dips a little. Its always a win-win situation for all of us. If bitcoin price goes up, your investment will grow, if the price goes down, get it while its cheap and then hold.