I currently have 2 different saves on 2 different systems. I have a PS4 46hr save and I am level 21 on that save. And I have a PC 111hr save and I am level 61.
And so far I am not even close to board. I feel like there still is so much to do in my 111hr save. I only built up one settlement and thats Sanctuary. I made it a complete fortress, there is a wall all they way around and there is a guard shack at the entrance of the bridge. Sanctuary has 161power and 598 defence. So far it only has been attacked once and that was at the 81 hr mark and I only had 232 defence back then. I am praying for another attack lol. Anyway what level are you and how many hours do you have played?