orgasm help

I'm 15 years old and I've been properly masturbating for about a year. I've tried a lot of things, watching porn, imagining things and setting the mood. I've played with my boobs, my clit and my g-spot but I still can't orgasm. I've tried with a shower head but it's just not powerful enough. I can cum but I don't get a lot of relief from it. When I rub my clit for about 10 minutes I feel like I'm almost there, I can feel my legs starting to weaken but I physically can't move my hand anymore because I'm EXHAUSTED! I'm starting to think the only way I'll ever orgasm is with a toy but there's no way I can get one as I don't have a debt/credit card and my parents would be so suspicious if I got a delivery. I can't get a toy delivered to a friends house because I'm not that open with my friends. So basically, I just want some tips/ideas on how to masturbate more effectively or some way to get a toy? Please help me? Also I know that most people orgasm when they're not trying to but this is only a recent concern.