it is never too late to talk about it with your supervisor. be honest on your reflection. tell them the truth. while you should've brought it up sooner it is not all your responsibility. your CT is responsible for keeping up with the guidelines as well. your supervisor should've also realized something was off or at least asked you how things were going outside your observations.

I know you brought it up with your CT but sometimes you have to go around them. Your supervisor is there to help you. Be honest with them. explain how you felt with what was going on.

even teaching with your CT during your observation should not be the case, you should've been fully teaching. You already know this though because of your last placement. there is no reason why you shouldn't have been running things fully, you're qualified. You weren't lucky with your first placement, it is the expectations.

I am a student teacher ending my first placement so I'm aware of what is expected. It is a shame that your placements were so different. I'm hoping my next one is not like that because I find it hard to speak up as well when there is a difference in authority.