I find that I can masturbate within like 30 seconds is this normal or what? I can't find to go any longer than that is there a way to extend that period of time before I cum?
It is if you are trying to see how fast you can make yourself cum!
Try using the Stop and Go method.
Our lives begin to end the day we become silent about things that matter. -- MLK
Well, if you're stimulating yourself constantly for 30 seconds and that makes you come, why not stop beforehand? I mean, you are in control of your actions, so you can slow down or take a little break if things heat up too much, before resuming. I don't know how long you've masturbated, but it usually takes some time before you really learn to control things to your likings. Give yourself a chance