Losing hair due to neglect, now looking to reverse or at lea

Hi there. I'm a 22 year old man who, due to depression and body issues, has made the unfortunate habit of neglecting showers for long periods of time since he was sixteen. As I climb out of my mental problems, I am taking showers at least twice or thrice a week, and I'm noticing that every time I go to scrub my scalp, my hands come away covered in at least a dozen strands of hair. I have also noticed my hairline receding and my hair has thinned overall. I do not have much money, but was wondering if there was something I could do to reverse this process as soon as possible, or at least stop it in its tracks. =\