Where can I find my e-wallet and to must I do to send money from bitcoin to my bank account. am trying to send money from bitcoin to my bank account
You can not send bitcoins to your bank account.
...except is some special cases when your bank accepts bitcoins. I do not believe your bank do that.
You need to exchange the bitcoins for money, say EUR or USD or your local currency. Lots of bitcoin exchanges can do this, but you need to have trust in the exchange, because they can stole your bitcoins and never send you the money.
I use two exchanges, but I am not sure if it is OK to recommend them here.