My ABS AND TC lights are on. What could be the problem ?

It sounds like you are having multiple problems and there is no easy answer through messaging and not visually looking at the vehicle but I can give you some advice your lack of power issue seems to be that maybe your converter is beginning to clog and not allowing the exhaust to escape the engine your abs and traction control light is monitored by sensors at the four wheels there could be a problem in one of those areas as far as your fuel leak that is something very serious as this could cause immediate fire my recommendation is to have your vehicle looked at by a professional repair shop