CA finals anxiety and focus

I just have 5 months but not able to give a kick-start.
Despite being matured and all the resources available though my age is 29.
Koi tarika hai....
I am doing CA studies again because I am intelligent enough to crack it.
But not able to sit and concentrate and also not able to understand how to cope up with this.
Also, I don't have a clear goal after CA.
My major problem is that I am not able to study.
Please also let me know how to keep the room remain cool in summers to study well.