last night some hacked my pvt key and steal all my eth and major eth tokens
can I secure my eth address or its now in control of hacker ?

so sorry about this sudden incident, that is the problems with ethereum wallet please don't expose your details to external body to avoid being hacked. secondly wen ever you trade in some major exchanges like forkdelta, etherdelta please recollect to remove your private key; I mean logout before you close the window. they hack through exchanges.
I experienced the same but the hacker send ETH on my accounts and get the tokens that have value on the market. I have no idea how he stole my private private key and realized that it happened after I joined some airdrops which no earn until now. I created new wallet and transfer coins that left on the hacked account.