Jenna, You must be quite young, Pluto in your chart is in Scorpio, so probably you are about 20 years old, right? In that age, we usually love to explore ourselves and also we have kind of get to know ourselves maybe a little and already have somewhat concrete knowledge about sex and sexual matters.
But sex is so much more than just sex. Looking at your chart, you must be very artistic and probably also quite sensitive person. It seems the way I look at your chart, that you may feel that you are not easy to love or something. Your Venus is in Capricorn, which is very hard placement and can indicate somehow cold relationships with father and may indicate that you do not feel loved easily. You also have Moon conjuct Saturn, which is almost the same - indicating you can be hard on yourself and never really feel loved. Moon in Aquarius is also hard placement and can make it harder for the person to understand his feelings, cause they want to be distant from them.
I am also very worried about the Pluto squaring your Sun. Pluto has everything to do with sex, abuse, control etc. Pluto is in your house of home, so there could be something like this in your early homelife, which maybe have caused you to feel unworthy or something. If you use this influence of Pluto the wrong way, things can go terribly wrong. You should never play with Pluto themes - sex, abuse, control, life, death. Cause it can easily transform from another theme to another...And maybe you feel that you could express yourself through this phone sex thing, maybe you feel that you could bring out your sexual side like this. But there is always more to it and phone sex is not the only way to express yourself the way, that you are the most fullest that you can be.
Sex has all to do with love and loving yourself and feeling loved. And in your chart, it seems that these things are not probably so easy to you. I would consider these things carefully if I were you.
Oh well, I am not here to preach, but I am sure that almost anyone can learn to work in phone sex industry, it just takes more work from some people, but I wanted to say these things, that you would think about these things really deeply within yourself before you go into something that gets hold of you and then you aren't able to let go anymore.
Good luck with everything you ever decide to do!
