I have some problems from blinds

winrate BB vs any Position PFraiser

BB vs UTG/MP -76bb

BB vs CO  -70

BB vs BTN -50

BB vs SB - 40 (here when I did CC i have a winrate -70bb so probably here i have leaks)

Vs steal I flat the MDF I know that i can flat more but i think that this way (whit a smaller range) I can manage better the construction of my range but probably it is not true because i fold hands that can make a winrate better than -1(when i fold)

any advice , articles or video series that can help me?

ty