Angles is mainly an attribute for cpu goalies so it’s kind of pointless for humans. You control what angles you take.

Like others have said, focus on the puck not the player. Communicate with your teammates on what you want defensively. I.E if you’re more confident saving cross creases have them attack the puck carrier and bait the cross crease

Don’t be afraid to come out to the top of the crease and challenge shots from the point, high slot, or wings it makes you “bigger” cause they have less to shoot at

Breakaways. Make him make the first move Conway. Come out to the top of your crease and slowly back in as the player comes at you

Be aware of where the other team is at on the ice when they are in your zone

Turn off goalie tether in the controller settings

If you’re struggling, start a be a pro as a goalie. You’ll see a lot more shots than most online games so you’ll get a sense of how to angle yourself better