Nice trend to build on — your lap times dropped by 4.40s over the race, which tells you found more speed as you settled in rather than fading. Sector 2 is both your strongest and least consistent sector, so that's your real opportunity: your own best lap (45.71s) shows what you're capable of, but your ideal lap of 45.33s means there's 0.38s per lap sitting there if you can tighten up sector 2 specifically. Going into your next race, focus on repeating your best sector 2 rather than searching for something new — consistency there is your fastest path to a better finish than P11.