Ok so my car started messing up, when its in drive or reverse I try to drive but my car doesnt move at all, well maybe just a little, now the car is on and i can hear the engine when i step on the acc. In other words it feels like it is just on neutral, could this be that it needs transmission oil or what else could it be, I know o probably sound like a dumba ss but i really suck at mechanical stuff, im more into electrical stuff like connecting sound systems and stuff, plz any help would be greatly appreciated.