If you want to use your raspberry pi remotely i.e., without connecting any display, mouse, keyboard etc. with it, you can use VNC viewer for that purpose and as well as configure your pi for working in SSH mode, to work on raspberry pi by accessing its IP address. This all is for locally and if you want it to work globally, you need to turn on port forwarding on your home network router after which you can access the same IP address of your pi anywhere in the world. Here I recommend you to contact with the SSLA technical support team to get better assistance for the solution of your issue.