My friend, you have literal aim assist on console for SPAAGs. Also, if you are exposing your turret over a depression, you’re not getting pixel-killed.
Lower your graphics settings to ultra-low. Gaijin often creates hills that are visually taller rather than hitbox-wise. So lower it if you want to see the real hills.
Furthermore, do not overcommit yourself (this means don’t push toward their spawn if no one else is nearby. You’ll be targeted immediately since you’re a solitary tank).
Additionally, rely more on Binoculars. While you don’t have to use it constantly, it can be very beneficial. Lastly, if you know an enemy plane is in the area, cease your movement. In certain terrains, this makes it harder for you to be detected.
Our planes heavily depend on flying low to the ground or spotting moving objects. Without that, the chances of detection are reduced. If feasible, use the squad command to announce the plane (“Air alert”).