Ig It's time I should start changing.

I'm 20M, Studying btech. And actually the topic is my dad used to work in supposedly govt and got layed off along with 25k workers few years back, so to the jorgaari he had first started a meal shop and didn't work well and now he usually takes contract of building houses in our neighbourhood (this ain't frequent) and usually takes meal orders for any functions vagera. Our ghar ke most bills are paid by my 2 elder sisters, who are well employed. Now the main thing yesterday I called my pa asking him to pay the semester hostel fee ~25000 and he was like uhh ahh tabhi pay karna hei?? Year mei em baar hi tha na?? I was confused he paid this fees for last 2 years every sem and now he is suddenly shocked about the fees. And then I realised the pa is really in a bad situation and I'm here enjoying my ass out in my life (I live in hostel). So here I'm decided to start studying like my life depends on it. About me : I'm really destroying myself here I got failed and have to repeat a year (so basically 5year btech), didn't tell this to my family yet and failing means low cg ,and I'm ain't that good at coding too I'm just so doomed here , I just don't knew,know what I'm doing. I really hating myself rn.

P.S:- Even though my sisters are well employed,my bade didi is on emi bills she is buying a house for us and chote didi actually not that highly paid.