Unless you absolutely need to integrate with the payment provider, release it and work on the payment integration after that. I've been in the same position. F

Unless you absolutely need to integrate with the payment provider, release it and work on the payment integration after that. I've been in the same position. For me, if I'm working on a substantial project solo, one great source of motivation is when people are using it, giving me feedback, etc. So when you have actual usage, some momentum, it's (generally) easier to keep going. The more time goes by without actually releasing something, the easier it is to lose momentum. Also, if you really don't like a provider, it's generally not worth your time to use them. You will end up spending some time maintaining in the future too and you will resent it, so probably better to find something that's good to work with.