Your store can only have one currency enabled at a time. Your best workaround if you hope to offer more than currency is by having a separate store for your secondary market.
I say this because multi-currency is only available on Shopify Payments, which is only available to select countries, and does not work with third-party payment providers. That and, if you're using Stripe, that would indicate that you're based in a country where Shopify Payments is not available to you. Stripe is not available in countries where Shopify Payments can be used.
To use Shopify Payments when you're not based in an eligible country would require that you can prove that you're business is operating out of an eligible country. Even if all documents are provided, we can not guarantee that you'll be able to use Shopify Payments.
What country are you operating out of?
Trevor | Community Moderator @ Shopify - Was my reply helpful? Click Like to let me know! - Was your question answered? Mark it as an Accepted Solution - To learn more visit the Shopify Help Center or the Shopify Blog