I've been trying so hard to swim without my lifesaver.
I'm trying so hard to advance without a paddle.
I'm trying to learn how to swim alone without any advice from the lifeguard.
I get exhausted, so I'm sleepy all day long.
Sometimes my lungs fill with water, sometimes I'm doing so bad at swimming that I want to tell the lifeguard, but I shouldn't.
I have to learn how to swim without any encouragement from the lifeguard.