Putting sentences together correctly
In Irish it seems that there is loads of variations of words and if organised it certain order it will change what the sentence means. It also seems that words can mean many things. Unfortunately Duolingo didn't give me tips and notes so I'm having a lot of trouble. Can you guys give me tips on learning the language. I'm having trouble structuring the sentences and choosing the correct words in the correct order. Also if you guys could link me to some really good sources for learning Irish I would be grateful.
Word order can change what a sentence means in many languages, including English; “the man eats an apple” has a different meaning than “an apple eats the man” has. Irish word order is typically VSO — verb first, subject next, object after that — so “the man eats an apple” is Itheann an fear úll (literally “eats the man apple” — verb, then subject, then object) and “an apple eats the man” is Itheann úll an fear.
Words can also have many meanings in English; for example, the preposition “for” is translated in several ways in Irish, depending upon the particular use of “for”.
Gramadach na Gaeilge is an excellent site for Irish grammar. Note that the original version of the site is in German, and the English version linked above has occasional bits still in German, or has literal translations of the German text rather than translations by meaning, so if something there isn’t clear to you, ask a question in the discussions here and someone will probably be able to clarify it.
All languages have variations of words, and many of them change the meaning if you change the order, and the same tips apply for learning all languages - practice, practice, practice. There aren't any shortcuts - a different syntax and grammar, in any language, takes time to embed itself in your brain. Duolingo works by facilitating this practice - even without tips and notes, it repeatedly exposes users to vocabulary and grammatical structures, allowing patient learners to develop a grasp of the way the language is put together.
You'll get better advice if you ask specific questions about specific areas that are causing you problems.
By the way, looking at your activity stream, the last two skills that you learned were Family and Jobs. There and no notes on the Jobs skill, and the Family skill only talks about the difference between clann, muintir and teaglach, which is also covered in various discussions.