The easiest and safest way to get back on track is simple, get a job. Your 1mil USD won't take you all the way anyway, especially since half of it is in your house and the other half in precious metals. In the near future none of this will have any value since AI will find ways to synthesize these metals. With a job you'll get into a daily routine and forget about rock and roll and your depression. You are too far away from retirement still so just keep grinding.
People actively refuse this, and would rather get addicted to opioids and anti depressants then say they are to ill, thus qualifying them for other people to pay for them to exist.