I think the Cognitive Sciences SE should be primarily about science. Often research in the cognitive sciences can inform decisions about personal time management, substance use, sleeping patterns, biases, etc. Some of our members might even be qualified to give such advice (since we are trying to attract psychiatrists and practicing psychologists). However, self-help questions are inherently anecdotal questions__. They are too specific to the person asking, and often non-scientific in nature. We are not a general health, productivity, or well-being site; we are a site about science.
I think we should have a strict policy against self-help questions. If such a question is asked (as deemed by the members of the community that can cast close votes), we should vote to close it as 'off-topic'.
Of course, sometimes the distinction between legitimate scientific questions and self-help is fine. For me, the prototypical example is this question:
Is there a reduction of "Brain Fog" with fewer hours of sleep?
A lot of the question reads "how can I avoid being groggy after too much sleep?" but the OP has invested time in connecting the question to science and asking it in a more scientific tone. The OP has also done his homework in a more than anecdotal way.
For these border-cases, the burden is on the side of the asker. If the question seems self-help-y (maybe we need to figure out exactly what this means) then we should hold it to higher standards of showing initial research and scientific tone; otherwise we should close as off-topic and encourage the OP in the comments to improve the question to a more scientific tone.