Advice for first comp

This is my first comp for sparring for itf. I recently switched from wtf to itf because my previous centre was a mcdojo. My coaches have already given me a lot of tips but I feel like I need more. I use a guard style where you put your hand close to your chin and the other for reaching out but I keep getting body shot by kicks. I try to swipe them away but to no avail and I have to keep retreating. Also, when I rush in to attack, they just throw a really fast counter kick and I keep dashing back. I really try to hit their open places but they just either easily block it or dodge it. What should I do?