You can't have your cake, and eat it!
you mean 'you cant have your cake and eat it' suggests that you cant have the best of both worlds or, you cant have it both ways
If you cant stand the heat, get out of the kitchen!
so a news cant be good
It means that when you need something, you will get it.
you cant achieve something unless you try hard
proverb
"That is one of his many practical jokes" is just a statement, neither an adjective nor a proverb, although the words many and practical are both adjectives.
Superstition and proverbs are both passed down through generations as ways to explain or guide behavior or events. However, superstition often involves irrational beliefs or fear of supernatural forces, while proverbs are more grounded in wisdom and practical advice for daily life.
you cant achieve something unless you try hard
you cant
proverb
nopee there is not a proverb