I love to pleasure myself, I usually rub my clit but it is boring now. Need new ideas

Ok so I am a sixteen year old female. I love to masturbate but my usual routine e.g. rubbing my clits is getting quite boring. I am forbidded to have sex before marriage so so far it has been masturbate, masturbate, and masturbate for me. I've tried to watch porn while i masturbate, stick my finger into my vagina(It hurts a lot and it doesn't feel good at all), stick a dildo into my butt(hurts a bit but feels good after some time), and also sexting while masturbating. I usually get a orgasm in a few minutes and then it's all over cuz I will be like "what the hell did I just do?!" and get sick of masturbating right after i did it. Is there any way for me to have a long satisfying orgasm without getting sick of it after having a orgasm? or is getting sick of it after orgasm pretty normal? Any ideas?

P.S. I don't have a removable shower head or a electric toothbrush or a air pump or a bathtub in the bathroom.