abdubb: These choices would change the meaning to "true path" or "true way", in case that would work for you, and in this context they're essentially interchangeable, so you could pick either one:

Aimsigh d'fhíorbhealach
or
Aimsigh d'fhíorshlí
Find your true path/way

In case you're wondering, the added "h" which appears after the "f" in each full expression is there for pronunciation/grammatical reasons (it's caused by adding the word for "you" in front of "fíorbhealach" or "fíorshlí").

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I'm not a native (or entirely fluent) speaker, so be sure to wait for confirmations/corrections, especially for tattoos.

I do really like these options the best I think. I will still wait to see other suggestions, but again, thank you!