I'm 21 and have been masturbating since I was 16, but didn't know the foreskin was retractable until recently. Now when I do it, I pull my skin back to the ridge, but I've never really been able to ejaculate fullyit just sort of dribbles out. Also, I've noticed my penis has a slight left bend from the base when erect. I think that might be due to how I wore pants as a kid. Is there a way to actually shoot sperm, or is there something wrong with what I'm doing?

You may have a condition called phimosis, which is when the foreskin is tight and cannot be fully retracted. This can sometimes affect ejaculation. I recommend you try using a topical steroid cream like Betamethasone to help loosen the foreskin. As for the slight curvature of your penis, it is likely not related to your pant wearing style and is quite common. To improve your chances of ejaculating, you can try using medications like Sildenafil before sexual activity. If these issues persist, it would be best to consult with a urologist for further evaluation and management.