I have only six months left how can i complete my syllabus ?
Well Bro 6 Months are Left.
Well just join a crash course, may be online or offline
My suggestion would be online - from physicswallah.
And whatever they taught just follow it
Just do hard work and rest leave everything on god.
You do your work, God will do his work 
Now for this 6 months lock yourself in room, delete all social media, Get detached for 6 month’s from everything.
Just focus on yourself, Your Mistakes, and You can take mentors Help To find better and relevant answer.