Commerce 🔜 Mechanical Engineering

Guys, I know its a crazy jump !

But it is what it is

I got admission in a foreign uni for MechE classes start in sep 7

I was a Commerce with core maths student (97.2% i think that helped me to bypass lack of Science in 12th)

Maths i am quiet good at it (93%)

But prob is lack of Science background 🙄 and I cant give up the offer too as its full on funded like free tution fee , and monthly stipend of around rs 45k

So can you guys tell which all physics and chemistry chapters i need to focus right now ?

And yeah any advice to a new comer?