New grower

Is my growth setup ok I I'm using 1 4ft t5 light and 5 floros I think it might be close to 10000 lumens the space is about 8sq ft and I am using foil as a reflector

you should be able to get something to grow, but you will need to keep it small/tight
the usual recommendation is about 3k lumen a square foot

Should be ok but mylar or flat white poster boards would be a better reflector, if you don't you should also have 2700K bulbs for flowering later on, could grow maybe 4 plants at a time if you lst.