I've had trouble maintaining an erection with every girl I've been with. I don't have trouble getting it back but as soon as I lose stimulation or get distracted it's gone. It's like a rollercoaster lol.

I'm 25M healthy and in shape. I thought it may be anxiety but this also happens with porn which I watch about 4 times/week. I thought that was average but maybe not.

Anyone else used to have this issue?