A schedule is feasible if you can maintain it and it works with your work/school routine. You’re right that there’s meant to be a slight benefit to eating earlier and not eating right before bed so your schedule should be fine. There’s no equivalent downside to an earlier eating schedule except that you may feel slightly hungry before bed because you have run off that food energy and start converting to using stored fat. But it’s not like you’re stopping eating in the morning, if your last meal is at 6 you should be absolutely fine.