Iin: that i've never orgasmed?

Okay, so I'm 24 years old and a healthy young woman. Also, I'm a virgin. An ex has eaten me out, and fingered me, but other than that (and giving him head), that's the extent of my sexual experience.

However, I masturbate quite often and I get EXTREMELY wet. I get so wet, it's noticeable (although, that may just be me, since I doubt anyone else can distinguish the scent of my arousal versus the other aromas in public places, but in a private setting, without many other distracting scents, it's all I can smell).

I've tried clitoral stimulation, but it gets me to the edge and keeps me there. My hand gets tired and my thighs seize up from the uncontrollable shaking and my abs get sore from being clenched. And fingering is difficult, since it really burns and doesn't feel good at all. I go from being super horny and gushing wet, to dryer than the Sahara.

I've read countless articles that are all "keep trying! You'll get there!" to "you may have diabetes, thyroid problems or depression if you're unable to achieve an orgasm."

That last bit really worries me since my mom and one aunt have thyroid problems (my mom had her's removed because it was cancerous), and I have a family history of diabetes on both sides of the family. And I suffer from anxiety and depression.

I don't know what I expect, but if someone could point me in the right direction, I'd really appreciate it. I'm not asking to orgasm everytime, but I'd like to at least experience it a couple times in my life.