I had pretty bad experience with my last publisher who had few well-known acts siged to them. they were really business minded and they torn me into pieces mentally as they tried to make me work so hard like a dog (i would have to use their studio premises to compose, the director gave me so much pressure. i was also nearly ripped off by a producer who worked with very famous female artists !) i left there and i didn't do music for about one year. after leaving that publisher i worked in Sushi bar, for 6 months where i enjoyed free sushi and felt more human

do i really need a publisher? what do they do? and does it affect to get non-exclusive deals from libraries or do publisher work like libraries and pitch tracks..? also what they mean by "they will administer my publishing" etc..?
in the past, i had single song assignments for 10 vocal songs and tracks from the last publisher, one of the songs was interested by a major label but mentally i suffered so much, i didnt go back to finish off the song. i ditched all the songs i had contracts, started on my own after finding Taxi...