Hello venus<3, and welcome to Scarleteen!
I'm so sorry that you're in this confusing and frustrating space right now. Not feeling pleasure or orgasming while masturbating or during partnered sex is a very common problem, especially among people with vaginas. While it sucks, different things feel pleasurable to different people, and it is important to give yourself time. I know that you said you've tried a lot of different things, but take a look at this article:
How Do You Masturbate?, it may have something helpful.
As you already know, sexual pleasure (and orgasm) are super dependent on your emotional state and mental relaxation, rather than just physical stimulation. It's possible that the frustration you're experiencing may be killing your chances of making masturbation feel good. Masturbation is not a race, or a competition, or even a guarantee that you'll "achieve" orgasm (I've always hated that wording lol). It's important to approach touching yourself sexually on its own terms, something that this article delves into:
Sexual Response & Orgasm: A User's Guide. You said that having sex with your boyfriend feels very good; I think that shifting mindsets and liking the touch for itself may make sex a more relaxed activity for you, instead of a frustrating one, and that may increase pleasure! How does that sound?