Don’t know what to do

So, orgasms are impossible for me. I’ve tried everything. I’ve done everyone that people have advised me to do on here but nothing is working. Porn, vibrators, fingering, sex, oral sex. NOTHING. It really bothers me because I am always HORNY and never seem to get a break . And my boyfriend has tried. I’ve only orgasmed twice ever. I get really horny during masturbation and then my body just completely shuts down and stops. It’s extremely frustrating.