I can see where you’re at. I mean it’s all very well these guys batting on about being happy with what you’ve got and that women don’t mind, as long as you can make them come; a little selfish in my view. If you want a bigger cock, then you want a bigger cock. What you need to get it may be different to what you expect. For a start, don’t expect miracles and don’t expect immediate results. Some guy’s gain quickly and some don’t. Check out other sites, look at all methods. Learn and understand as much as you can.
You say you’ve been using the Jez, but how have you been using it; what regime have you been following? Do we take it (as you claim you’re unable to Jelq because you’re a student?) that you don’t use the extender on a regular basis? Unless you’re doing something radically wrong I find it difficult to believe you’ve not made any gains at all, especially at your tender age.