How to Masturbate??

Y'all idk what my problem is. I've been masturbating for a year now, with a dildo. I enjoy the feeling and feel like I get really close to climaxing, but I can never get there. Someone told me that a vibrator would change everything, so I got one but it doesn't help me at allllllll. So I got another one, aimed more for beginners. This one does even less for me! My best friend told me she can get herself off with just her fingers, but that does absolutely nothing for me. I don't know if it's just an emotional thing and I don't have a strong enough fantasy or what. I use plenty of lube and try stimulation of all kinds and in different combinations and orders with absolutely no success. I kid you not when I say clitoral stimulation doesn't get me off or even turn me on. The only thing that gets me close to an orgasm is penetration by dildo. Help??