Scared and need assistance

So this is about to be kinda long but I’ll try to keep it brief. I’m 18 years old and I’m still a virgin I’m in a committed relationship with my boyfriend who I love dearly. He 23 and is a lot more experienced then I am at sex, and because we are in a relationship I come to him with my issues and concerns about our first time. I know he is the one I want to lose it to but I’m just scared that it won’t be as good as he is use too.(Sorry TMI part ) I also have like a constant smell and it’s weird I’m constantly wet and don’t know whether it’s my cleaning routine or what. I’m freaking out honestly because I want to at least be fresh and clean down there in a regular basis thing. If anyone has any tips or messages to help me get over my anxiety of sex it would be gratefully appreciated. Thanks for reading and listening to my crazy self.