Try to remain truthful. The power of truth never declines. Force and violence may be effective in the short term, but in the long run it's truth that prevails.
To be left alone on the tightrope of youthful unknowing is to experience the excruciating beauty of full freedom and the threat of eternal indecision. Few, if any, survive their teens. Most surrender to the vague but murderous pressure of adult conformity. It becomes easier to die and avoid conflict than to maintain a constant battle with the superior forces of maturity.
From the scientific view, the theory of karma may be a metaphysical assumption -- but it is no more so than the assumption that all of life is material and originated out of pure chance