COngrats on the fitting!
Luckily I wear probably one of the most common bra sizes - 34B. Then again not so lucky because they are more expensive in some places and often out of stock.
I tried to stay braless for a while but failed miserably. The rubbing against my nipples was far too distracting.
I hook it in front then slide it to the back and put on the straps. I can also reach behind and hook it but why?