Nagging (Real) Estate Agents

I’m currently trying to sell my house; privately without a (Real) Estate agent. Why give 3.7% of the value of your house to someone else when the Internet can get interest?But the agencies see the same ads that everyone else does and they call. So one called and tried to argue with me that I had to let him see the house and that we should “work together”. How can I work “with” someone who is that pushy?You need to be really careful when selling to build the relationship and respect both parties; even if you’re a (Real) Estate agent.