How long was your break from racing?
How long (and consistently) had you raced before?
Without knowing any more, my advice is to just do it more and re-acquaint yourself. It takes some nerve and assertion to hold your position especially when the speed isn't super high. But it's important to do it gracefully and not aggressively. So it takes some practice.
__________________
"Your beauty is an aeroplane;
so high, my heart cannot bear the strain." -A.C. Jobim, Triste