Advice needed!

So I masturbate almost every night before I go to bed and I’ve been doing this for maybe a year or two now. Everyone talks about how they scream or moan but I don’t do that. And it only takes me maybe a minute or two to orgasm and it doesn’t last long, even if I quit right before I climax for a couple minutes to really build it up. Am I doing something wrong? Am I supposed to feel a moan or scream coming on? Is my orgasm supposed to last longer? Could only using clitoral stimulation be the problem? I’m too young for a dildo or real vibrator and I honestly am a bit scared for that. Any tips or tricks maybe??