I came across this:

http://www.acen.co.uk/cy/darllen.html

You can read short articles on various topics in both northern and southern Welsh.

You may also find something on the BBC Wales website:

http://www.bbc.co.uk/wales/learning/learnwelsh/

For Irish, you could try Beo!, an online magazine with built-in translation of difficult words and phrases:

www.beo.ie

There are quite a lot of fairly inexpensive little books available for students of both Irish and Welsh which contain on-page, or end-of-book glossaries of new or difficult words. One example is the Welsh series Cam at y Cewri, published by Gomer.

Se mi vengono in mente altri, ti faccio sapere.

https://www.saysomethingin.com/welsh/course1

hope that might help you

Thanks Coligno, that will be very useful for practicing. Since reading only grammar books, once i become about intermediate, come be boring and demotivating...as for the little books i dont know if they are aviable outside the UK. 

Grazie mille per i consigli!