Thanks for the suggestions. My Uke is an 1880 brand concert with solid spruce top and mahogany back and sides. Its not the most expensive uke, i purchased it for around $280 Australian.
I replaced my aquila strings with brown worths mainly because i found the sound unpleasant, in between i did try some other kinds, dunlop (pros i think, is that a thing?) and a generic brand that came with my second uke. That uke is a bondi spalted maple concert, with aquila completely different sound but i also struggle with volume.
My strum is down with the index finger nail and up with the thumb nail. I know thats unusual but i kind of like the percussive sound my nail makes and i feel like if anything that should make it louder?
I don't think it is the ukes, when others have played them there was no volume issue.
I talked with my uke teacher about it, he suggested a pick. I have tried a few, hated the felt and the plastic kind, i have a leather one now, it sounds better, i think i could learn but personal preference, i like to touch my strings while i play. It just feels right to me. I hope i answered all the questions, thanks again for helping out.