Yeah, bro.... don't stress hey!

Speaking from experience, while I was with my ex-girl, when we first started going out, I used to cum.... a lot! For this reason, she wouldn't give me head, out of fear.... kinda funny now looking back on it.

The amount you mentioned sounds normal. Live with that. If any girl wants to judge you on the amount you cum, then she's probably not worth your time anyway....

Take it easy.