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Best free resources I know of for learning Irish.
Start here-http://www.philo-celtic.com/
And for some modernized content, a great app from Coláiste Lurgan - https://play.google.com/store/apps/details?id=air.AbairleatOideMobile
Irish is easy if you want to learn and Philo-Celtic is a tremendous resource for the beginner. Once you learn the ~11 grammatical rules reading and writing in Irish becomes quite logical and ordered.
Definitely Coláiste Lurgan's OIDE but also (if you're American/Canadian and have access to a participating library card) Mango Languages' Irish course have good, accurate pronunciations.
www.focloir.ie has good pronunciations if you need specific words.
If you're serious about getting a good handle on the spoken language early, I would highly recommend watching some TG4 (Ireland's Irish Language channel). Even if you don't understand much of anything, actively listening to the language is a great way to get a kind of subconscious hold not just on pronunciation but also intonation, inflection, and rhythm of the language, which is a huge part of sounding like a more natural speaker. Plus there are English subtitles so you can actually follow/enjoy what you're watching.
If you're on an Android device this might help you with the Irish pronunciation
https://play.google.com/store/apps/details?id=air.AbairleatOideMobile