Blog Advice....Private

Needing to know more about making my blog private. All advice is extremely appreciated. I don't mind other bloggers reading but there are a few non bloggers that I'm not to terribly thrilled with because I'm tired of getting my Swag Jacked! #SwaggerJacker
I'm an open book and love putting it all out there. I also like looking back and seeing all of the memories we have made. I love having my own little hidden treasure tucked away in my blog and sharing with you as I also like sharing in your own memories. So if I can figure this privacy thing out and you are wanting to be on my reader list I dont mind at all just let me know.