OT: am playing D&D light and am having fun

[Erax]

Having played D&D for more than 20 years, here's my advice :

Don't bother to buy the rulebooks. Find yourself a good group first. That is so much more important. A good gaming group will show you all the game has to offer and will let you reach the point where you can read the rulebooks on your own (if you try to do it in the way that seems logical - buy the books, read the books, then go play - it won't work, trust me).

Gaming stores are good places to meet players. Down here, most of the employees play RPGs themselves, although in your region it may be different. Just avoid people who claim things like 'this system we play is the best ever' or 'our group is the best/oldest gaming group' 5 minutes after meeting you.

D&D is a good place to start because it's the common ground for all role-players, whether they like it or not. You will find some things in other RPGs that only make sense if you've played some D&D first and understood that system's strengths and weaknesses.

I wish you a good time !