I've tried a lot of things for pleasure but I don't actually climax

What do you mean by rubbing is to long?
As for a true female ejaculation orgasm not all females can have them and the ones who can take time to master it properly and they take time to achieve to.
If you would like more info just ask and I'll try to help you :-)

girl, never doubt your own abilities. you don't need toothbrushes or shower heads or bananas or anything else anybody says. lay down with your legs spread, bent at the knees, and lift your lower body up a little. take one hand and insert one or two fingers inside. you don't have to reach far, your g-spot should be fairly shallow in. it sometimes has a rough texture or feels like a little bump, but it's generally squishy. apply pressure with your fingers. if it's the gspot, you'll probably know. take your other hand and rub your clit in slow circles. go back and forth between applying pressure to your gspot and releasing it. (like pressing a button really hard over and over) you'll feel something start to build and almost instinctively, you'll want to move everything fast. don't. the slow build up is part of what it takes to squirt. it may take a while, but keep it up, applying more pressure to both the clit and the gspot as you go. when you feel yourself start to fall over the edge, push and keep moving your hands. I think you'll surprise yourself. ;)