if you are really struggling, cost is prohibitive, and you think this might be an option then trying it once or twice at home is reasonable risk reward tradeoff, speaking from personal experience.

There are places that sell home testing kits which are very useful since you don’t know what you’re getting by looking at it. People used to test for each other at raves until the police said it was a form of condoning drug use and shut it down. So now people still buy but it’s more dangerous.