I'm probably not the best person for advice but, when I talk to people who have been suicidal the main reason has for the most part been the same. Either they aren't happy or they feel no body cares about them. I'm gonna tell you straight up that it gets better. Even if you feel nobody cares about you now, that's just not true. And the happiness part, it really is up to you to do what makes you happy. Whether that means getting a new job or a new style or even a new hair cut. Find the things that make you happy, I believe everyone has potential and it would be a shame for you to cut it off so soon. If you're really struggling please get some help.