Stay away from resin as a beginner. It requires serious ventilation (ducts etc) and precautions which I’m assuming you don’t have planned. As for FDM, keep it in a room where you won’t be when it’s printing and make sure to crack a window open during printing or afterwards if you’re printing ABS/ASA as it’ll warp if you don’t have an enclosed printer.
Regarding the budget tracker: https://www.actualbudget.com/