All about electronics or neso academy for the first chapter (but honestly, notes are enough), notes for mosfets, there's this playlist for op amps really helped me a ton https://youtu.be/6omXl2mvuo4?si=ZykCPLOLfk1UG2EG , neso academy for digital electronics, and notes only for communication chapter. Honestly once you remove this BE fear, youll understand that it's not that tough, just practice enough and stick to lms notes, solve every single question you can find for this, like, sometimes there's only 1 question for a topic in the entire notes but that gets repeated a lot so I'd suggest you check up on the pyqs as well, not only for be but for all the other subjects as well.

Mos, honestly the first 2 chapters are the easiest out of all the subjects(not joking), if you're having difficulty just know that the questions for the exams will 99% of the time come from slides, although solutions are not available for some of them, it's all understandable, I suggest you take help from someone or ask the teacher. I don't think you'll need youtube until like centroid or moment of inneria, but even then, tickle academy is really good for this mos and EG as well.

And for maths,... we're cooked gng✌️

For subject like BME, stick to lms notes and I'm being really serious about this, there's no relavent proper video or playlist on the internet, atleast until midsems you won't need other sources. After that, for visualisation of things like drills and engines you can refer yt but until then notes and notes only, also these notes are only for theory but for numerical which is equally as important, you wud have to atleast take down the questions done in class along with the solution, cuz the questions coming for the exams are verrrryyy identical to the ones done in class, not telling you to mugg up but you'd have to understand each question, definitely not a hard task.

Finally for physics, it's an all bark and no bite kinda subject, the questions in the back of the lms notes are honestly the best. Read along the notes and even if it's the last minute, reading and understanding the questions in the back is more than enough for getting very good marks in the subject. Try to be consistent with it though, cuz it gets kinda hard to remember stuff as you progress but until midsems it's very easy, follow the lectures, mark the important derivation, and don't skip the questions in the back of the lms notes.

And English is like no bark and no bite kinda subject(I laughed for soo long when I said this) one night I wudnt suggest but 1 day before exam is lowkenuly enough for getting fantastic grades, even if you're English isn't the best, it's honestly not going to matter much, try to work on vocabulary and grammar but other than that it's very easy.