How can I produce semem more often?
Well, aged 30 you should be producing an OK amount if you aren't ejaculating more than once per day. But it doesn't suprise me that it is not as much as it used to be, that sounds resonably normal. I'm 37, and I know I produce more if I haven't come for 3 days or more, than if I did yesterday. Can't remember for sure how much I produced 7 years ago ;)
Now I'm in my 30 age and having sex daily. Earlier masturbating frequently
How often are you having sex (or masturbating)? Production does seem to slow down as you get older, that's just normal I'm afraid.