Help...

Okay so I'm masturbating and I'm trying really hard to orgasm...19 and I'm really trying to figure this out. I enjoy clitoral stimulation and I'm not for sure but I think I've orgasmed or at least reached the verge right before I orgasm. I don't know. I would rub slow and then apply more pressure and go faster...I start to feel a warm sensation all over me and then tingly and I start to shake a little bit but I get really tired and can't keep going. My hand won't keep going! I try but it's like my whole body just flops and is in this relaxed state. I'm breathing really hard and it just feels great. Was I orgasming? Or is there a way I can keep going to go over this edge I think I'm at every time?