Ok so i got mono Junkz or half Junkz half Sentinel
mono Junkz: Eebiza Haze Tremorh Onik Flanagan Dreen Jiro Stiko
half deck: Morgan tobie Havok Katja Dreen Onik Haze Jiro
which one is better and what changes should i make
I think Senti + Junkz half deck is better. Try to get Jackson, Lehane and Melvin for Sentinel and Qubik and Gibson for Junkz and work out a half deck that suits you best. You can go like Jackson, Lehane, Melvin, and Flinch for Sentinel and Gibson, Qubik, Tremorh, and Flanagan for Junkz.
I'd say the first card to concentrate on getting will be Quibik!
A half deck of Tremorh/Jiro/Quibik/Flanagan with Havok/Morgan/Flinch and Katja will do nicely