Dad's wills trust and property.

I was being influenced by my relatives and my family member regarding my dad's serious mental ability. My dad is suffering from alzemir (dementia) disease. As from the last 3 years. My elder brother and mother is looking up to dad every activities of daily routine. They are continuously saying problem will recover as soon don't worry. As a younger brother I said many times regarding the treatments they are giving to my dad some Ayurveda medicine are going which are going worse on my dad's body they can't able to speak, can't able to move, can't able to hold a spoon why don't we seek for some professional help of good doctors. Both mother and elder brother said we don't have a time for all that stuff we are just doing this formality so they can get died asap and we can take his all share property. I was stung and I give a look to my brother he said don't show these angry ? face we'll not give you your share. If you ever speak against us and i'll make your life hell my little brother. So without wasting any further delay I want some professional help of doctor and they have stopped graduation too from the time I was in their favour. I have not yet completed my final year which was completed in December 2017. They said you have to do daily up and down from Jalandhar to Chandigarh. Idk why they have said because now they have to give answers of my sacrifices too. I'm engineering student of computer science It was not possible for me to do daily up down. I was telling everybody in my relatives come home and talk to mother and elder brother. They openly said it's your family matter we can't do anything and don't worry your dad will be recover soon. They don't know my time running so fast and they are trying influence me to leave my graduation and support my mother and brother. So it's very clear now sir my dad health and my graduation is on the high risk. Because I was threatened by my mother and brother. Don't ever dare to go against us. So please contact me asap.