I can't orgasm at all???

So I've had sex with multiple partners throughout my dating life and I've also tried masturbating and I'm pretty sure I've never orgasmed in my life, even on my own. There was actually a period in my life in my late teens where I identified as asexual because I thought I just didn't experience sexual attraction at all. While I still recognize asexuality as a valid identity I have discovered I can be sexually aroused, but it never seems to go beyond that. Most people I've talked to tell me if I had orgasmed I would definitely know, so I assume since I'm still confused it hasn't happened yet but I honestly have no idea what's going on. I know it's not my partner's fault because I can't even cum when I try on my own. Is there something wrong with me? And if so, what do I do about this? I'm so lost. 😞