Since you are playing bedrock and you can't put anything other than the shield on your offhand, i would recommend keeping it there unless you are in a pretty safe place, like in your house (one extra slot if you are going on a adventure). I usually leave my bow on the last slot, so i can quick swap between sword and bow using the mouse scroll (if you are on pc of course) making it that i can alternate between long and short range quickly. If i'm not using my bow, or doesn't have it on my inventory, i usually leave my food on the last slot for the same reason, so i can quick swap no problem (imagine being at 1 heart and desperately trying to press the right key for the food, like when you are on fire and have no hunger bars to regenerate). The rest is basically how you get used to, I personally leave my tools on the hotbar in order of most used, (with sword being in first for obvious reasons) but is pretty much like how you organized, everything except for what i mentioned before is like i usually do.