This is what I know (YMMV, tho):
Excessive use of "tranquilizers" (games, TV, food/booze/pills, etc.) usually means that you are unhappy about some part of your life. Better find out what exactly that is, face up to it and try to do something about it.
Don't worry about finding a GF. Eventually, everybody who is looking for a mate will find one. (The tricky part is deciding if you can be happy with her for a long time...)
Passivity is bad for you. That incudes waiting for a girl who may have other plans, and waiting for a job opportunity that may not materialize. It's wise to keep your options open.
Exercise is also good for your mental health. (Something to do with brain chemistry.) Sports or any other regular workout helps to fight feelings of depression.