Sin Amira I'm gonna play devil's advocate... you absolutely should rub one out! You should be proud of what you achieve on a daily basis. Have a bath, use some oils, take some time to get to know yourself intimately, find out what you like and what works for your body.
I know a lot of women from similar backgrounds to you, and I think it's fair to say that a lot of their husbands are completely clueless / misguided when it comes to sex... especially the bit about satisfying their partner! Getting married does not necessarily equate to a fantastic sex life. You want to be able to guide your future partner in a way that satisfies both of you, and to do that you need to know what works for you and what doesn't.
By all means remain chaste, abstain from sex and keep yourself for your future husband... but take time out to hit the reset button once in a while! You deserve it. It's your time and your body.
1001%.