Establish a daily routine where you are doing some moderate exercise and getting quality sleep. I highly recommend practicing job interviews so that you come across with the confidence and initiative that you would have if already employed.

You might want to get in touch with career office of the school where you got your CS degree as they may have resources that are useful.

Identify the technology that is most in line with your interests and the jobs to which you are applying and become proficient or an expert in it, preferably making something along the way that can be shown, demonstrated, or discussed.