Golf is fun again for Brooks Koepka. The star golfer and his wife, model and influencer Jena Sims, dealt with a tragic miscarriage last year that the golfer has indirectly said affected his performance, leaving him “very frustrated.” This year, Koepka feels much more at peace while on the links and it’s allowed the game to feel more natural to the five-time major champion. Brooks Koepka during Round 1 of the PGA Championship. Getty Images “We had a lot of family issues go on last year. It was noted, and that took a toll on me. It definitely took a toll on Jena,” Koepka said after shooting a 1-under 69 Thursday in the first round of the PGA Championship. “That was kind of tough to deal with. Yeah, I mean, at home it’s in a much better place. It’s easier to come out to work when everything at home lines up. Everything’s a lot better. Last year was just difficult personally with what was going on off the golf course, nothing to do on it. It was just off. “So, yeah, just being in a better place. It’s exciting.…