It isn't ideal living with your parents when you are used to your own space and no interference.I guess though it is better than the alternative,being out on the streets.
Try to see it as a temporary arrangement and explain to your dad that you don't need mentoring at your age and that you didn't expect them to assume you were back as a child that needs parenting.Remind him often that you are an adult now and deal with annoying interference as an adult would,saying no dad I am a grown man now and your comments are inappropriate.This will stop you going mad and stop his attempts to revert you back to a child to his parent from being assumed as the norm.