Hello Redsox,
Being in the U.S. myself I completely understand how you feel. Learning Irish in America can be challenge but yet it is an worthwhile and honorable goal. From my own personal experience, I had to be creative on my own free time and I had two native speakers help me as well. Without the support of speaking it everyday, it is important to find ways to reinforce what you learn so you won't forget. This could include numerous methods: keeping an Irish Journal where you record things that you learn everyday. This journal will also help keep you motivated as well. After awhile, you can even keep a journal of your daily life only in Irish. There're more methods as well but would too long to list!
As a beginner listening to Irish is extremely important even just to get used to the sounds. When I started,I was confused by the funny sounds but after awhile I learned to recognize them. I always thought they were pretty, but I didn't know how the phonetic system operated. This even included the sentence structures as well. But one I got used to them my progress and confidence IMPROVED a great deal.
There're plenty of free sources out there as well and tutors/teachers if you want a more personalized, coaching experience. But ether way, learning the sounds properly is a must. If you want to hear the language
http://www.tg4.ie (Irish language television) and
http://www.rte.ie (has a section for Irish Gaelic radio) are two good places to hear it.
I also found help from forums such as this one was a MAJOR help

The good people on this forum can offer you advice which can be hard to come by, especially as an American learning Irish.