Oh mama, I feel you, my second was also a nightmare compared to my first who just slept on cue, so the comparison is real and it messes with your head! My neighbour brought her baby to Eunice Ang from Little Sleep Fixer and said Eunice was really practical about working around the family's schedule rather than forcing an early bedtime, which sounds exactly like what you need. From what I heard, she does a short discovery call first so you're not committing money before knowing if it's a good fit, and she focuses on gradually reducing sleep associations rather than going cold turkey, which felt more manageable for a 10-month-old. I'd also say be honest with whoever you engage about the 3rd nap situation and the false-start bedtime pattern, because those two issues together need someone who can look at the full picture, not just give a generic schedule, some mums found results quickly, though a couple felt it took longer than expected depending on how consistent they could be at home.