khisanth,
I would echo everything that was said on here two years ago. But Trim is spot on with this:
TA unfortunately doesn't pay the bills so always has to come second to your main career.
Truer words were never spoken, and too many keen-as-mustard reservists forget this to their cost. The best way is to have a frank chat with your employer. Pls feel free to PM me if you have specific questions.
Best of luck,
S41