Hi. I totally understand how you feel...I'm on the pill, but i'm always worried that it could fail. I usually use spermicides. There are lots of different types, like foams, jelly, film etc. I think they all work basically the same, it just depends on personal preference. Lately, since it's been back on the market, i've been using the sponge and I really like it so far.
As for the time frame of taking your pill, i've heard there's a window of 3 hours where you can take it and not interfere with the effectiveness. You're probably fine taking it between 6 and 11 every day, especially if you're using backup.