If side direction shooting is intentional, that can be intresting
Tank controls making it hard to move away. It's better to make it move directly to button direction. Or it can be interesting if you holding W and ship is moving and looking to mouse position
Also many beginners is making shooting on button pressed. It's better to use looped Timer, so it triggers shoot logic, and then you can check whenever button pressed or no. So, you shouldn't spam button. Just hold it
Anyway. It's good that you made art assets yourself. Happy learning!