This is now basically an ethical question, if it is allowed to lie in certain situations, e.g. the eighth commandment. Already in the bible this is more interpreted, as something you do on purpose with the intention to harm your next one and therefore your community. (Exodus 20/16, Levitikus 19/11, Deuteronomum 19, 16-19 etc). The next question is now, if the psychiatrist is part of your “community” or rather it’s enemy and of course if he or she is harmed by you claiming of having “insight”. I also forgot to mention before, that in order to get rid of a guardianship, I recommend to of course admit that you have had difficulties in life and a crisis. Now however you are much better and thank them very much in their help in this. This I think, is also a matter of plain courtesy. Regarding alcohol and drugs it is known, that it is much better in court to admit, having had difficulties, and therefore you sought help. Then go and be free.