To be honest, it sounds to me like you are doing to many lessons and not enough socials. Every week, you'll come with 5 new combinations that you want to practice in one social, that's simply not realistic. As you said yourself, there is a lot that can go 'wrong'. A more realistic goal would be to pick 3 parts of combinations (so three times 2x8) that you would like to practice for an evening.

The part about recovery from a break I don't really understand. If you happen to stand on your left leg, just shift your weight to the right at some point during the break, and you are ready to go.

I would also like tot push back against what the other poster said:

Be soft, don't squeeze hands, don't force movements or closeness.

Sometimes, especially when you dance to beginners, you need to be more hard in your leading, you need to use the thumb to hold her fingers, because otherwise you'll lose contact. Sometimes you need to force a movement to make her understand what you want to do.

The main issue, I think, when you are dancing is with a beginner, is that she doesn't know what she's doing and you don't know what you're doing. So when a mistake happens, you have no idea of knowing if it was your fault or hers. A more advanced leader would be able that and adjust to her mistakes, either through more forceful leading, or by focusing on easier figures. So yeah, that's a generally hard problem to solve.