PvP tips.

So I’ve done mostly PvE and wanted to start working on PvP more. I’ve done battlegrounds, Cyrodiil, and imperial city enough to get around 1 mil alliance points. And I have worked on my mag Sorc build following a recommended guide. I’m rocking two PvP sets at the moment that is from the Unified Gaming YouTube https://youtu.be/EFds-gd4P_8?si=8GBi_UQ5bNfSOfIL. My gear is only purple at the moment but I have everything he has to the Skills, food, vamp 3, and sets. My problem is I just can’t win in fights unless I have help. Sustain is not my issue but it seems that I just can’t attack and defense up at the same time. When I bar swap I also feel it’s delayed and slower response then when I actually hit the buttons. I’m still working on my rotation but some players are just too good. I feel I need to relax a bit more instead of button mashing and focus on what I’m doing. But the second I start seeing my health drop I tend to spam shields and blink to get some distance. I know over time and just fighting will get me better but looking for any tips. Anyone who has ever gotten Emp I look at gods in this game because PvP is its own community.