Another Night of Solo Pleasure

Went back to my dorm room tonight and had some alone time. Felt the sheets under my fingers as I undid my jeans, pulling them down just enough to free myself. Got a hand around it instantly, feeling how stiff and eager it was. Closed my eyes, imagining someone else here, someone who knew what they wanted from me without even asking. Rubbed harder, faster, imagining that tongue circling the head instead of my fingers. Pulled off a few times, wanting to last longer but knowing I wouldn't. Ended up spilling all over my hand within minutes. Is this normal? Should I try something different?