People among all economic group, how tensed are you throught the day? How much happiness do you get?

I am a teenager, and am confused that does earning money makes people more happier(not directly, but indirectly- like having a vacation, going for a mini trip, having hobbies , having good food)

I saw a video that earning to happiness ratio is a curved ling, increasing steeply with increase in earning at first, but getting capped at $720000 per annum, idk it's indian value as different thing cost differently in different countries.

Now, recently I got to know about my friend's father's income, and became envious about it. While my father has to do work everyday so hard, his father is doing an well established business. Yes, he did struggle initially, but my father did struggle and study hard too.

Now I am questioning if I should do hard work(not just physical hard work) like my father.

Now one question came to my mind while thinking is -is his father really less stressed than my father is, like he must also deal with business things, but now he has almost retired from business at 45, whereas my father is still working, with investment in few small properties that might not even pay off, and will be working till 60.

So this is the question to you- do you feel less stressed and happy if you have high income? Business, service, etc

P.S: Also, if you are a businessman with settled business, what are the problems you face ? Just out of curiosity.