Rough running and low idle

[Chim450]

My engine has suddenly started running rough and idles at 500 rpm from cold. This started after I was driving the other day with aircon on and was stationary, just as I went to pull off the cooling fan kicked in and the car stalled. After that I couldn’t restart it for a couple of minutes and probably flooded it in the attempt. Now when I start it runs a bit lumpy and idles low, there is also strong smell of fuel from the exhaust. I suspect it is overfueling for some reason, maybe lamda related? I haven’t taken it out for a run since as it has been chucking it down here. Is the best thing to take it out for a run and see what happens? Could it cause any damage to drive it any distance with these problems?