I agree with Selb.
The hair cycle takes time, so you really should try to take a break about thinking so much about your hair for a little while. As the saying goes, "time will tell". It is good that you've become aware so that you can establish a plan of action; that being said, if you are indeed starting a pattern of loss, it's not like it's going to be unrecoverable after a few months. You've obviously got plenty of quality and your hair isn't going to all fall out in a matter of weeks or even months.