It seems nowadays Bitcoin has somewhat stabilized to around $6500 sometimes it drops a bit below $6000 sometimes it climbs a bit above $7000 but usually it comes back to $6500.
Also, I've got to use the
Electrum wallet. It seems to be a good solution if someone likes to use a convenient online wallet, so that he doesn't have to download or update the full blockchain that is kind of huge in disk space.
It does provide easy to use labels for transactions, new address for each one, strong password protection, and I'm reading a lot of positive reviews about it. I've been using it for a few months now without issues.
However for large amounts (etc. 1 full BTC and more) everyone recommends getting a hardware cold storage and using paper wallets as well.