It is a stupid idea :) \- you have not a problem when talking alone, you have a problem when talking to people. You wont overcome it without talking to other people. \- all good therapies involve talking/practising with strangers. \- when a stutterer doesnt go out for 2 weeks, their stutter after that is way worse. I understand you, it would feel great not to stutter for a month or two when living in isolation, but after that the you would stutter to a first stranger who you talk to. So yeah, don´t do it, you can invest your time better.