Hi,
I have to say - I never comment here, but there are so many resources these days. I feel compelled to spew it out for all to see. Despite the fact im on my phone typing in lowercase with hamhands.
For the basics, try Duolingo. It's free. That said, make sure you use it in a non-mobile environment, meaning a laptop or desktop. The mobile site does not have the forum per question. And the tips, which are really lessons, are not easy to access if you use your phone. That is where the power of duolingo is, the pre-quiz tips and superuser answers.
There is also Memrise app, Quizlet app (look for classes by Spaceboy76, my local teacher or mùinteior, ask to add his class even if your not in Los Angeles). Someone mentioned Bùntus cainte (they have cds, books and online resources). Smart TVs have a TG4 app but my subtitles dont work, but they work at a computer. I like the subtitles 'as Geailge' so I can keep up. Look up a program called *love under lock* on youtube: "gra faoi ghlas* it's a fake reality show for language learners.
My favorite online dixtionary is:
https://www.teanglann.ie. Thry have audio component under another tab.
The philoceltic society teaches via a yahoo group starting in Oct. every year. They have the mp3 audio translations of "Progress in Irish" (book) Lessons. And someone else posts the answer key in PDF. You can also buy or steal a pdf of Nancy Stetson's book on irish pronounciation. Wikipedia has an Irish orthography page that is helpful once you get rolling and Forvo is a website where users speak words and phrases aloud for people learning the language in question. Many Irish words and phrases there.
Finally, join a class where you live. Many cities have them. If you use progress in irish, it helps to have someone tell you what the point of each lesson is. It's not explicit. The pther books we use are Gailge Gan Stò (also comes/w CDs). LA has the celtic arts center and three other groups that I know of. SF has more and the east coast is lousy with Irish speakers, which is where the philoceltic society is based.
Start with duolingo. It will give you the basics. Then move on. See this man's post on reddit:
https://www.google.com/amp/s/amp.reddit.com/r/gaeilge/comments/5f8cc0/why_not_duolingo_and_what_to_use_instead/In future, Say Something in Welsh website is going to release an Irish resource soon. They have a really great way of teaching unique to them.
Finally, if anyone is desperate for irish speakers, chexk out your local hurling teams. The Play Hurling LA website can help you find them. It's a given because most of the hurlers ive met are 20 year old guys from Ireland, just in the States for a short while. Most have been given some Irish in school.