First set up a crypto wallet with coinsquare.io - call it your "Crypto Paypal" if that makes it simpler. Once you have that, you use blocktrades (here on Steemit, it's more or less just a currency exchange for cryptos) to turn your Steem into Litecoin, then transfer it to your wallet. Once it's in your wallet, you can transfer it to your bank. The first transfer takes about 10 days so if you'll need money ASAP it's not the best. And, you have to have at least $100CDN to cash out from your wallet to your bank.