Benefits only mean so much if your job causes you useless, unhealthy stress. If you find that you hate your new job, either quit or change your attitude about the job. The bottom line is choose by doing and create the life you want. I would like you to reconsider your statement on growing older and wanting a boyfriend. This may have more to do with your own self-image than actual age.
Males are visual creatures and having a body in good shape is an attractive asset at any age.
It is ageless. Regardless whether you do it for general attention, or to lure a potential boyfriend or more importantly for your own health, one should eat right and exercise. There is a time to be age appropriate with your body, and now is the time to be healthy. Don't abuse your body. If you start to take care of yourself, and have a structured enjoyable life it will show.