Trying to get my head game together

Y’all I am dating a guy who I really like. He gives me everything that I need mentally and sexually and I really want to make sure that I am offering him the same. This is the first time that I am excited to do and try anything he wants in the bedroom and I am excited to suck his dick but my gag reflex is something serious. I want to be better at giving head. With that being said, for others who have a serious gag reflex, what strategies or products have you used that help you?