Z820 Metro can't find a ROM nothing working right

I need help please have a z820 ZTE Metro I rooted my phone with KingRoot it worked fine but nothing else has successfully worked on my phone the reason I rooted my phone was it didn't have enough storage I backed up stock rim using titanium tried to partition as card with apart it said it worked but after I linked to SD using link2sd my phone still says I don't have enough space in my storage for apps trying to wing it at this whole rooting thing nothing successfully so far besides actually rooting please please please help me