network going down every five minutes
That was from more than 1 week ago; it's solved now.
and my server lags
I have never seen any HammerHost server lag like this. If you want me to investigate, please ask.
i can literally never get my add-ons to actually work
Please PM the exact issue and I can investigate. What is the exact problem? Is it with uploading the add-ons from the control panel, enabling/disabling them, or your Blockland server not executing the add-ons?