IOn weekdays, I usually get up onat 6:30am.

My breakfast needs to have a big mug of coffee.

When the weather it's really, reals extremely hot, I make a simple iced frappuccino, but usually it's a hot exspresso.

I do a long strength to start my day.

If you mean work out, you would say "I work out to start my day."

I start to studying at 8am.

I do amake lunch tofor me and my family.

I eat my lunch every day inat 12apm.

I start my second round of studying at 1pm or 2pm.

After studythat, I start to read again, until I fall asleep.

Saying "study" again sounds a little repetitive, so you can simply say "After that" instead.

Ah, but sometimes I eat something before sleepbed.

IOn weekdays, I usually get up onat 6:30am.

I do my selfcare routine, like brushing my teeth and doing my skincare.

With My breakfast I need to have a big mug of coffee.

You could also say "I always need a big mug of coffee with my breakfast"

When the weather it's really, really hot, I make a simple iced frappuccino, but usually it'sI have a hot expresso.

Minor change here "I have" just sounds more natural

I do a long strengthwork out to start my day.

I start to study at 8am.

"I start studying at 8am" would probably sound more natural

I do a lunch to me andwith my family.

You already said "I do" so you don't need to add "me"
You could also say "I have lunch with my Family " both are good

I eat my lunch everyday inat 12apm.

1. You already said "I eat" so you don't need to clarify "my lunch"
2. When we talk about time we almost always say "at"
"At twelve" "at 3:15" "at half past 6" even "at noon" "at night" "at midnight " there are a few exceptions:
"in the morning" and "in the afternoon"

I start my second round of study 1pmat 1 or 2pm.

If we are listing two numbers next to each other we only need to clarify the second one.
"At two or three pm" "at seven or eight in the morning" "between nine and ten at night" but if they are far apart then you clarify both
"At eleven am or one pm" "between six pm and three am"

After studying, I start to read again, until I fall sleep.

You could also say "I read untill I fall asleep"

Ah, but sometimes I eat something before I sleep.

You could also say "before bed" both are good options