DROWNING NEED HELP

a lil bg I got 78ish percentile with 12th and under 130 marks in bitsat and 90ish percentile in mhtcet. Didnt give ugee or vit or comedk or gujcet or any other exam Rn I'm in my drop year Scoring 95+ only in mocks but only until October. Marks and sitting capacity have started to decrease. Last mock I gave on November 24 fetched me 50 marks in 1 hour usse zyada I can't sit because I'm scared ki kya hi attempt ho payyega yet again wohi marks ayege and marks bhadh hi nahi rahe bc. 24th November se aaj tak sirf practice kari. Kinda tried to complete whole phy and chem syllabus ho bhi paaya but full confidence nahi hai jo ki kisi ko bhi nahi hota. (I guess?!) Phir bhi marks nahi aa rahe. Tried to sit for a few mocks in October continously yet didn't get marks. PLEASE TELL ME WHT TF SHOULD I DO. I'm a non maharshtra resident so no chance in mhtcet and I really wanna enter some good tier 1 college only preferably govt but kya wo possible hai bhi? I'm so tired of the motivation boosts and every shitty video. Have tried to study continuously for an average of 6 hours in the past month but usse zyada bhi nahi hota. My point is kya hi karna padta hai aakhir kaar to be able to sit through that mock and score atleast 150. FST starting from December 15 and I'm so scared what will I tell my parents about the marks if I keep scoring this much. They'll think I haven't been studying even though I only know what all I have done yet scoring so low. Idk how tf can I increase my marks in 2 days. Should I prepare for bitsat but what about jee percentile? If yes how? If I get low jee percentile all my confidence goes in trash. Last year I got one of 29s1/ 27s1 and scored so low that I lost hope for every other exam and straightway focused on boards then took a drop in April. Idk what to do pls help.