What do you think about this situation between me [15F] and my bf[17M]

Today I gave him a blowjob and I don't know if that's good because I feel like I'm too young and our relationship just began. He wanted me to blow him after I gave him a handjob and I did it even if I was scared at first(but then I liked it too). After that he kissed me on the lips and hugged me to make me feel less shy or embarrassed but I still feel kinda weird because I don't want him to tell anyone and I also know that I'm too young to do that. What do you think?