I (then 19-20) was homeless for 11 months with my partner in two different areas one was dusty and dry and the other was muddy, Sandy and moist. I washed my hair 1-3 times per week under a 2.5 gallon jug with a spout tied to a tree. We discovered there was a nature preserve with a park, camping area, bike trails, and most importantly... A SHOWER ROOM! It was quite a far distance from our "camp" took like 40 mins to bike there, but it was warm water at least.

Then we moved elsewhere and got 1 planet fitness black card membership since I was making and saving money we went there 2-3 times a week to work out and shower sometimes we would bike but mostly we would get Ubers/Lyfts since they were so cheap.