I have found on Brynhildr, that there are indeed, many PF groups that don't accept new players, but there are also those that do. My advice is, join the learning parties until you are comfortable playing the role you wish to use going into these raids and then start setting up clear parties, or try messaging weekly clear party leaders and explain that you basically know the fight and just need to official clear at this point.

This is how I have made my living with raids/primals. I am about to start AS my self and so I too will have to do this long painful process. XD I feel it is worth it in the end usually if you like raiding enough.