Idiots to think that the way out can be anything but extinction. The passionate mind cannot understand that there is pleasure in dispassion, or that the dispassionate mind does not desire passion. Sometimes the mind alternates rapidly between the two states, and in either is convinced that the other is unattractive. The world is consumed by passion and, what is worse, thinks passion admirable. Until you have practised and mastered the Buddha's Teaching, and then found it defective, you are not entitled to look for some other solution.
Most scientists suffer from naive incredulity.
Even if you cannot gain concentration, at least you can be mindful. If you are always mindful you may gain concentration. But whether you do or not, perpetual mindfulness is the remedy against depression. If you are always mindful, even when tired or disinclined, you will have no regrets. Unless you determine on this effort you are lost.