Shepherd told whitbytownfc.com: "It's now my time to kick on and hopefully get a solid space in the team next year.
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"I was in and out for most of the season last year, and then went out to Newton Aycliffe and I came back feeling fresh and feeling sharp and I'm ready to go again.
"When I first came in, I didn't really know what to expect at the level. When you're playing, you start to learn and that's why I think I was so confident come the end of the season.
"I can't wait to get back at it. We're all raring to go again."