Work has taken over....

So when I graduated I was so excited to work 8 hours a day then come home and have nothing to do nights and weekends, except play of course! Boy was I wrong!! I am working 10 hours a day PLUS weekends!! What happened to the life where I go to work, do my work, then come home to NO work?? One complaint about being on salary. I have been working on this one project for 2 months now and can't seem to solve it. I am the worst engineer ever!!!!! I enjoy what I do, I just don't have the experience yet to know what I'm doing. Hopefully I will get it one day....