I agree with Nerys that the sail plan of your boat is basically in the wrong place and adding a bowsprit would make things worse. There is a lot of info out there about centre of lateral resistance and centre of effort of sail plans. I think, if you want to keep the mast where it is then you will need to build a new rig, as Nerys points out.
There is no reason that Dragonforce rig shouldn't work if it was in the right position- it does look a bit odd though, probably a bit too high.
I Googled 'calculating centre of effort of sail plans' and immediately found fairly reasonable diagrams and explanations and any book on yacht design will make it clear. There are also You Tube videos.
I once read that experienced scale sail builders would mock up a rig with dowel, plastic bin liners and tape just to try a rig out before committing to spar and sail making.
You need to know the clr of the hull and c of e of any proposed sail plan before making any educated guesses. You can find the clr of the hull by putting in the bath and pushing sideways with a digit, when it moves sideways without tipping one way ot the other, that's it. Or trace the underbody shape and cut out in card and balance on a knife edge - if you have the plan.
The centre of effort of the sails should lead the clr to give a little weather helm.
Good luck and have fun.