When you squeeze it, don't tilt the gun in the slightest way right or left, otherwise you'll miss. That's what I see people do a lot.
Probably need to keep this in mind, and also get my head orientation to the sights right. My dad was kinda helpful though cause he has shot many guns ranging from your pea shooter .22s to M60s.
This is the closest picture I could find resembling the SKS I shot:
