I have to agree...I don't think that all you are good for is being a sex slave, either, and perhaps some soul searching is in order.
However, I sorta get the feeling that you are going to go with your desires, anyway, which, imo, is fine.....so long as no true harm comes to you as a result, (but, that would be hard to predict in situations such as those based solely on sex).
There will come a time when you will have exhausted your desire to be the submissive toy to these men, and you will begin to feel the need to seek better for yourself.
With that in mind, it is my advise to you that between now and that time, (the duration of being the sex toy and satisfying your own sexual promiscuity), you may want to (at least) prepare yourself for that enevitable time for change by creating and securing a financial resource for yourself, (savings account in which you deposit into as often as possible), for the time when you WILL be facing the break from your present sexual environment.
Make your choices wisely of who you will devote yourself to, with the notion that you, too, deserve rewards for your actions. Do not simply settle to be ONLY the slave, but view yourself as their "treasure of pleasure"..so to speak....meaning that you deserve reimbursements for your devotions, (and in this case, financial security for your future well being).
It is my strong belief that, "to each, their own"..so long as no harm is present or results for anyone in any form.
I wish you the best in your journey. And remember, the important thing is your welfare (whether it be the short or long term)....YOU come first.
Be careful....

Enjoy.
Shangrala