If SCOTUS finds the tariffs unconstitutional in Learning Resources v. Trump, they should order refunds.
Because I've ran into the same issue. I don't think this is actually the tariff. I'm almost 100% positive this is the shipping companies (UPS, and FedEx, but UPS seems to be the biggest culprit) are slamming receivers with massive bills because they are miscategorizing many items coming from Europe.
The symptom of wanting to give up is because you aren't growing fast enough
The symptom of founder turmoil is because whatever strategy you're currently using isn't growing the company fast enough
The symptom of running out of money is because you're not hitting your sales targets