How to avoid manipulative parents?

As the title asks, I am having trouble walking past my parents' intentions with 'my' future...they stuffed me into jee coaching (by badmouthing my sister in front of me, who had taken a drop for neet and could not crack it). I wanted to get into the field of research and have already gotten a research paper on manipulating electrons (ironic) accepted in a reputed journal, but they were butt hurt about it and laughed at the publication fee (20k). They tried to force me to reconsider my decision of doing research and pursuing quantum physics, but they did it in the most shocking way. I was out with my dad when he dropped a bombshell that he spoke to a guy working in isro for 15-20 minutes about me and my decision, and the guy was disappointed that i wanted to do research, since most of their recruits are engineers....he also doubled down by asking if I am okay to talk to the "guy at isro" (sure buddy), I grew skeptical since a few weeks back, they called in an astrologer who told me to take up cs engg...so I checked his call records to see if my dad was telling the truth, but there were no calls from unknown numbers, and the calls lasted less than 2 minutes that day. My mother is very emotional and cries her way out of things...which made me 'agree' to take up engineering, just to be away from all the drama. I also did not care about jee, and scoring good in it, and gave it for the sake of it. They say that I can focus on research after getting a btech degree...but I saw through them, they wanted me to force me into a job after btech and do no higher studies...(with a bit of eavesdropping), they occasionally throw around these words like "you can do research", "I'll support you no matter what", which had made me spill out some things I wanted to focus on, only to be used aginst me to win arguments..."selling kinley water bottles on a bike, if I choose a bsc degree." Thankfully, I have stopped sharing anything to them. Any advice on how to tip-toe around them will help...Thanks!

As the title asks, I am having trouble walking past my parents' intentions with 'my' future...they stuffed me into jee coaching (by badmouthing my sister in front of me, who had taken a drop for neet and could not crack it). I wanted to get into the field of research and have already gotten a research paper on manipulating electrons (ironic) accepted in a reputed journal, but they were butt hurt about it and laughed at the publication fee (20k). They tried to force me to reconsider my decision of doing research and pursuing quantum physics, but they did it in the most shocking way. I was out with my dad when he dropped a bombshell that he spoke to a guy working in isro for 15-20 minutes about me and my decision, and the guy was disappointed that i wanted to do research, since most of their recruits are engineers....he also doubled down by asking if I am okay to talk to the "guy at isro" (sure buddy), I grew skeptical since a few weeks back, they called in an astrologer who told me to take up cs engg...so I checked his call records to see if my dad was telling the truth, but there were no calls from unknown numbers, and the calls lasted less than 2 minutes that day. My mother is very emotional and cries her way out of things...which made me 'agree' to take up engineering, just to be away from all the drama. I also did not care about jee, and scoring good in it, and gave it for the sake of it. They say that I can focus on research after getting a btech degree...but I saw through them, they wanted me to force me into a job after btech and do no higher studies...(with a bit of eavesdropping), they occasionally throw around these words like "you can do research", "I'll support you no matter what", which had made me spill out some things I wanted to focus on, only to be used aginst me to win arguments..."selling kinley water bottles on a bike, if I choose a bsc degree." Thankfully, I have stopped sharing anything to them. Any advice on how to tip-toe around them will help...Thanks!