[BonitaPersona]

I've began to see nihilism as a memetic virus or disease. Once you begin wandering outside the boundaries where you were raised, you almost invariably end up catching the nihils. Some people have few symptoms and can easily continue living meaningful lives. However, other people are heavily affected by them, and become abated and purposeless. We know the symptoms to the nihils.

Then, it's a matter of taking care of yourself and antibodies will begin to build.

I know you are asking about this second part, and I'm sorry I can't give you a straightforward answer (a vaccine, could be said).

The most I can be confident to say is that, as every memetic phenomena, it has a strong subjetive charge. I don't think it is 100% subjective, as humans have more in common that we'd like to admit. And, most likely, the best vaccines for your case are already suggested and proven countless times before. Don't try to reinvent the wheel. Also, be wary of bullshitty alternatives to vaccines/medicine (superfluous and toxic feel-good coaching).