NO, don't use blockchain wallet, just look at all the "my blockchain wallet was hacked" stories out there, it used to be good.
Try one of the HD wallets like Wallet32 or Mycelium.

Whatever wallet you decide to use make sure you have 2fa setup and don't store more than you can afford to loose, just about every online wallet provider has probably been hacked at least once by now.
I would say $50 worth of BTC is about the max you would want to keep online, throw the rest on a paper or hardware wallet and just top up your online account when needed.

Where did you buy your coins from and what wallet have you got them stored on now?