Yes I did, and I have barely any idea what the problem is, or how to fix it.
Basically, you should not have taken up that project, there is no way you'll have it presentable in 2-3 weeks without having any prior experience.
You will have to try again when you fully understand that this software isn't a toy (even though it may be marketed as one), and is in fact incredibly difficult to master. Sure, the whole segment plonking and weapon placing is a few button clicks, but somebody has to expend a LOT of effort in making the aforementioned things.
If all else fails, I would strongly suggest you get something like a medieval DOOM game (which would probably be free) and mod that or something. In fact, you could probably make a dead simple one from scratch by just taking a picture of your hand holding a sword and cut it out in photoshop or something.