Thanks for reaching out to the Community, @batymahn.
At this time, there's not a feature in QuickBooks Self Employed to track cryptocurrency. I'm going to submit feedback to the Product Development Team about bringing in a feature to allow this to happen. You can visit our Blog to see what's new in our products, as well as seeing what's coming in the future. In the meantime, I recommend visiting this link to see if there are any third-party apps that you can integrate with your QuickBooks for cryptocurrency exchange: https://quickbooks.intuit.com/app/apps/home/.
If you have any additional questions or concerns, please don't hesitate and reach back out! I'm always happy to help in any way that I can. Have a nice day.