You may be thinking that all your social relationships should now be with other witches, but that is not the case. You can still interact with people with the same interests - dogs, for instance (I have six; five are females). I live in a small village where there is only one other witch... and I only found out that she was one recently. I have plenty of social connections and don't feel the need to share my 'witchness' with others. If you go round telling other people you are a witch, you are going to get some very odd looks and people will avoid you as being a bit weird. So stop talking about it, keep it to yourself and just be 'normal' around others.
Meanwhile, you can build up your witch social life online. Loads of groups on social media. You can go to moots and meetups (same thing), go to events and network, etc.