When to put TH inside??

I am going to be TH7 in 2 days. Everything is maxed. I like farming! At what stage should I put my TH inside my walls?

You should always have your town hall outside

Only reason to have it inside is to protect your trophies, and farmers generally do not care for those outside of being in the cup range they want. Free shields are much more valuable than a few trophies that can be replaced in one raid.

For me, the TH stays outside until I have a maxed out TH10 (building wise). That'll be a few months more.