The only free online "therapy" I found was strangers that listen to you while you talk. That's not exactly therapy.
I'm not quite sure what you mean by this, or what's disqualifying for you here. Every therapist is a stranger until we meet them and start working with them, for one. But by all means, therapy available online isn't just about people listening while you talk (and chances are, that's not how any therapy online you'll engage in would go, because just about any therapy is more than someone just sitting there listening). That said, when I'm asking what you're open to, I'm also not asking just about what you might have found for yourself. We're pretty good at finding resources around here, especially someone like me, who's been doing this as part of my job for a couple decades now. So, I'm generally going to be better than your average bear at finding the kinds of resources I'm suggesting. At the same time, I also don't know what your expectations of therapy are, and I'm feeling a little like I'm still not sure you've answered my question. So, I'm going to try again: would you be open to looking into this?
So, if that's what "freak out" means, that's actually inappropriate behaviour for the parent of a legal adult, and something you could actually do something about by involving adult protective services if you want to actually change this situation. It's not appropriate for parents of an adult to do things like keep them from support services like therapy, to limit them from using public transit, or to keep them from social media. And from the sounds of things per your siblings' behaviour, your family has a longstanding pattern of being dysfunctional all around, if not emotionally abusive. Your older adult brother feeling scared of your mother isn't indicative of a healthy family.
And I don't need help transitioning into an independent life, I just need the freedom to be able to like all of my other friends.
I think that there's something you keep missing here. You live with deeply controlling parents who, to some degree, you're also allowing to "keep" you in some ways (financially, etc.). They clearly are not going to change. They've shown you that again and again. If you want things to change, it's you that's going to have to force some changes here, and that is going to mean transitioning to an independent life: that transitioning is what gets you that freedom. And transitioning *means* things like getting to a place where you can have a job, and the help you need to the steps to have that job.
If the barrier were only a ride, an independent way to manage that would be to talk to some friends or others who worked where you did about carpooling and pitching in on gas/car expenses to make that work, or moving somewhere where you *are* within walking distance of the bus or light rail. See what I mean?