How to make my custom entity look at the player/other entities?

Hello,
I created a custom entity which shoots snowballs at the player and other mobs. Now I want it to look at the target while doing so --> rotating its head to it/at least rotate its body in the targets direction
I tried to use this.lookAt(enitity) which doesnt seem to work.

Spawning Particles doesnt work either

public void tick() {
			this.attackTimer++;
			LivingEntity targetentity = this.snowmanCannon.getTarget();
			this.snowmanCannon.setAttacking(true);
			Level level = this.snowmanCannon.level;
			this.snowmanCannon.getLookControl().setLookAt(targetentity);
			
			if(!this.snowmanCannon.hasLineOfSight(targetentity)) {
				
			} else if (this.attackTimer == 1) {
				this.snowmanCannon.setAttacking(true);
				Vec3 pos1 = this.snowmanCannon.getEyePosition().add(0,-0.5,0);
				Vec3 pos2 = targetentity.getEyePosition();
				Vec3 dir = pos2.subtract(this.snowmanCannon.getEyePosition());
				SnowmanCannonProjectile snowball = new SnowmanCannonProjectile(level, pos1.x, pos1.y, pos1.z);
			    snowball.shoot(dir.x, dir.y, dir.z, 4.5F, 0.1F);
			    this.snowmanCannon.playSound(SoundEvents.SNOW_GOLEM_SHOOT, 1.0F, 1.0F);
			    
			    level.addAlwaysVisibleParticle(ParticleTypes.EXPLOSION, pos1.x, pos1.y, pos1.z, 1d, 1d, 1d);
				
			    level.addFreshEntity(snowball);
			} if (this.attackTimer == 3) {
				this.snowmanCannon.setAttacking(false);
				this.attackTimer = 0;
			}
		} 

Thank you for any help