Opinions on my high school schedule?

I've already started high school (freshie. ) but I've been having trouble with my schedule for school and I need help on trying to create a schedule I can follow so I won't be all over the place. I've already made one but I just need your opinions and what you think I should change to make it better. Thanks.
Morning
4:40 wake up
4:40 - 5:00 walk my dog (it depends on his mood that day so he can either walk super slowly or jog but my schedule has enough time for him to do both and I'll still be on time he also needs to take his time to potty)
5:00 - 5:40 breakfast (I make mine and my dog's too I don't like school breakfast so I don't eat there plus I need a really big breakfast to fill me up or else my stomach will start making whale noises xD)
5:40 - 6:30 basically all the things you need to make yourself look presentable
6:30 go outside for the bus
Afternoon
3:00 do homework (I will be doing it on the bus so I can use my time wisely so a part of it will be already done by the time I come home I will also read in the morning while on the bus because my school is huge on reading it's also part of my daily homework as well but I'm staying away of doing my actual homework like say math or something so I won't make a bad habit of doing last night's homework before school)
4:30 chores (after that I'm free to do anything else that I need to that day)
7:30 bedtime
oh btw I will set alarms on my iphone so I know when exactly to move on to another event

Wow, i found this amazing considering my 'schedule' is practically non-existent lol. If this is working for you then nothing needs to be changed