Stay in close like others have said already, but don't move back further than you can keep a tight group say 12yds?
(Having a well tuned bow helps)
When i first started shooting a recurve all the time in 92, i practiced every evening for hours at a time and i would stay in close say 10yds. I wouldn't stop till i could put 6 arrows inside a skoal can. It took a few days, but i'd do it over and over again once i started getting them all inside it.
Shooting well up close builds confidence.