I need some help with a translation for a tattoo that I want. I want it to translate roughly to "No fear, no regrets, no limits". From what I've been able to find out online the proper translation would be, gan eagla gan aiféala gan teorainneacha. I would like if someone could confirm that this is right or suggest a proper translation. Thanks.

I believe that's correct.
Wait for second confirmation.

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It is recommended that you always wait for three to agree on a translation.
I speak Connemara Irish, and my input will often reflect that.
I will do an mp3 file on request for short translations.
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I agree with Bríd, but if you want the third clause to fit better as to rhythm, you could use cuimse instead:

gan eagla, gan aiféala, gan chuimse
[the added "h" in chuimse is there for grammatical/pronunciation reasons]

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