Hi,
Do not give up, even if you have to learn the hard way! :-)
For help on starting with JavaScript and debugging your code, maybe you could try
https://stackoverflow.com/questions/tagged/leafletThat site is more convenient for many requests and posting code.
Also, consider reproducing your issues online (e.g. on
http://jsfiddle.net/ve2huzxw/18/), so that people can directly see your problem and modify your code.
For your other question, yes it is very do-able displaying some hyperlinks in markers / features popups, or directly binding a redirection action on marker click.
Good luck!