
Okay, then please sleep! A lack of sleep can cause SO MANY problems, especially in the brain. In fact, please train yourself to take breaks away from the screen (more so at night if you don't have a warm-toned screen filter). Blue light has been shown to cause significant side effects (including disrupting your brain's natural sleep patterns), which makes it hard to fall asleep because your brain thinks it's still "daylight" despite it being at night. Not to mention the eye strain and headaches... Ugh.
Anyway, please take care of yourself! ( T﹏T )┛Take care!

To expand on that with examples for the initial confusion: "I'd like to advise you on this subject, if I may?" (as a verb) and "I will take your advice." (as a noun)
Practise is a variant spelling of practice, both of which have the same meaning. However, in British English, "practise" is a verb and "practice" is a noun. Meanwhile, in American English, the variant spelling "practise" is never used unless it's an error.
should i sleep or not been awake since since monday