These free AWS credits are nothing but a free first dose of heroin you get from a dealer. It's only intended to put you on the hook, unable to quit because of too much investment made, and force you spend, spend and spend on incredibly overpriced infrastructure that burns at least 5x and sometimes 50x more than dedicated hosting costs.
Just never use any clouds. Never consider them. There are no upsides. No exceptions. Clouds are always a scam.