Hi! does masterbation (1 to 2 times aday for a couple of years now) truly cause problems in marriage sex life? (pre-ejaculation)?thank you!

Of COURSE not!: Whoever told you that was doing you a major disservice -- probably trying to manipulate you. There is nothing "spiritual" about this kind of deception; abstinence is basically impossible for a man your age. It's a good thing -- you learn about your body and mind to prepare you for being an adult. I trust it's not an obsession. Vary your technique to become an even better partner / future husband.