Visit https://stripe.com/ and create account
Click on live mode
Open and edit .env
file.
Provide your keys
PAYMENT_PROVIDER=stripe
STRIPE_SECRET=sk_live_QBWdfa8IX8gNzEaVMWqyzWQG
STRIPE_KEY=pk_live_CsOsYeu7ll3w7sCQDfS1S0E2
You are done.
Visit Admin Panel -> Currency/Charges to set currencty and charges