If you are in a major city and If your that addicted and also have no one around, you may start collecting injections of cocaine and heroin for prostititon in a trap house for a place to live and fastest access to a fix.
Only if your really really addicted though in a big city and not just wandering a rural area with a smelly backpack and come Accross a homeless old guy who'l let you hangout with him for a few days under his bridge and if your a girl maybe he'll wait 1-3 days living on the slump with him before he thinks he's going to see if your interested in sex and at that point you run away again.
You will meet Three vagabond types when homeless as a girl:
1. Older guy who's a loner, but has his drugs to lend you for free. Sympathetic but slowly will try to fuck you or get you to in 1-3 days. He's not usually interested in hurting you, but usually you'l run away or you guys will mysterious split up when he realizes you won't show sexual interest.
2. The Young possy: this is the gangs of inner cities, they are not neccessarily homeless, but function a 24/7 existence of selling drugs in your area and will befriend you quickly and have you come to the trap house for trading all day drugs with all day customers to pimp you out to.
3. Old deranged bum squad: these are the groups of older bums who sit and beg for change or get together in shady areas to lay around and inject/drink alcohol. You'l come Accross them and itl seem jovial but very quickly after the free drinks and Heroin/coke, they realize they wasted their time and nobody got laid, and if you aren't nice to them or can give them further reason to exist with you, Turn violent/angry/scary on the woman and she flees again, hopefully still alive.
literally that is it, for an addicted woman that's who you'l find also on the streets 24/7 like you are.