Losing my Virginity...maybe?

I need advice about losing my virginity!! I’m 15 (please don’t tell me I’m too young). I’ve looked up advice but it just tells me the same crap which is obvious. I’m on birth control and know to use condoms every time! My boyfriend and I have been together for little longer than a year, we have even known each other since 5th grade (best friends brother). We are all like best friends and are going on this camping trip pretty soon with their family! And he has mentioned him only wanting to lose his virginity to me and he told his best friend he feels as if the lake would be a good time to do so (which i wouldn’t be so opposed). Anyways beside that I just need some realistic advice please!!!

Side note:

I also have another concern...this is kind of TMI but idk how to say this but I squirt (I think that’s what it’s called) is there anyway I can prevent that? Idk what if he would think that would be weird lol and I honestly think it is weird.