Never been homeless so my advice may be useless but I have friends who have been. Honestly if you are an able body, work really fukking hard. Tell nobody your situation because people perceive you differently and unfairly, try to work 2 jobs, as the jobs will not only pay but serve as makeshift shelter. Grind for 2 months and then see if you can get a whip if you don't have one, then build up from there.
My friends who went homeless only did because they weren't willing to put in the work, even being in the streets trying to sell product you still gotta put in legwork.
Now if you aren't an able body, you'll have to rely on government resources, that I know nothing about.
Edit: I just realized you said youll have housing in mid july
I'd just say try to find a way to sleep in a car instead of the street, find a decent spot