i got back in 1st year....

what do i do now? like my cg will drop alot because i didnt get good marks in other subjects as well my chances of on campus placements in fully gone my sem1 cg was also below 8 and this time it will sure go below 7 overall cg also fucked now how do i do? im so fucked its not even that i did something useful or did drugs or some shit i just didnt study i agree but now what do i do? i gotta make sure i get 9+ next sem also do i retake the course next sem itself or in 4th sem?

also what is the process for retaking? do i need to pay 6k for this? or do i just take while ffcs?