For some hiring managers or recruiters this may just be feeding their ego but there is a very real sense that if you do not follow-up, you are not very interested in the job. You may not believe me but it is true. This may come as a shock but many candidates just apply because they want “A” job, not “this” job. I really do have people say “oh, I am open to anything” when I ask them what they are looking for in a job or position. This would be like going on a date and asking the other person “what do you look for in a significant other?” and they reply “oh, I am not picky… I will go out with anyone.” Boy, wouldn’t you feel special.
Guess what, companies want you to want to work there! So act like it!
Let me encourage you to get up every day and focus on what you do have in life. Be thankful for the blessings of the little things, even when you don’t get what you expect.