How to manage time

How y’all manage time cause I always fall behind and I need to get in front.

I just turned in my delta math late that she assigned today so 8% which I can cope with, but I didn’t study for the test tomorrow. My English teacher assigned 80 pages to read today and it sucks cause on Wednesday I have activities as well as class changes so I don’t have the time I normally have. I haven’t started on my physics homework or my history homework and I’m late on a French assignment that was due tonight but it’s online and they only take off .09 per hour so I’m chilling. I guess I’ve done this to myself cause all of my classes are either ap or honours except for econ which is chill but I have a test in there tomorrow

I just don’t understand how people can do all this shit and then actually enjoy life. Plus I’m a night owl but school starts at like 7:30 so I lose a little part of myself every morning. Advice on how to manage time??