This isn't going to change. You should do everything in your power to get a better supervisor, particularly for your dissertation research. You're early enough in the process that starting a new project, or modifying your current project, is completely worth it to get a better supervisor who actually supports you and will help you graduate. Talk to other grad students to see what they think of their advisors.
Also you should try to find other faculty (and possibly postdocs) to advise you who aren't your supervisor if at all possible, and try to form an informal group of grad students to meet periodically to discuss research and grad life in general.
And remember it is a marathon not a race, so overworking is usually unproductive unless you are up against a strict paper deadline (even then it's unproductive but may be worth it in the short run.)
Also you should try to find other faculty (and possibly postdocs) to advise you who aren't your supervisor if at all possible, and try to form an informal group of grad students to meet periodically to discuss research and grad life in general.
And remember it is a marathon not a race, so overworking is usually unproductive unless you are up against a strict paper deadline (even then it's unproductive but may be worth it in the short run.)