Hmmm... I think I kind of understand how complicated an RPG can be, as I'm making a turn-based one using an RPG engine. Now, making one from scratch, solo (yes, you), is a monumental feat! (them thousands of lines of script!)
Wish you won't drop this project. I (and I'm sure there are others) want to see this project bear fruition.
Also, if I may suggest, for starters just use a couple of stats instead of all seven at once? Just so that balancing the battles won't take too much time and effort.
Though ultimately, whatever you choose to do, cheers and good luck! Fighting!