I'm just plummeting at the moment, and I know that the worse thing I can do is to isolate,
Do you think it's the worst thing you can do, or are you beating yourself for believing you shouldn't isolate when feeling down? I ask because my beliefs about how connected I should be have sometimes been worse than the fact of my isolation. For one, I'm very introverted. All trauma aside, I'm introverted, quirky, and don't fit in many places. But, I also fail to make consistent efforts...like I want relationships but am not compelled to make close ones, so miss steps that others maybe take or just disappear.
I think I isolate in a different way. I'm not generally afraid of people that I can interact with on a superficial level (ie work colleagues), I'm more specifically afraid of friendships, I don't let people in.
I relate to this very much. I also relate a lot to concepts like avoidant attachment style. It's a long-standing thing, though I have had a couple good friendships in the past. They are fleeting and in early adulthood I stopped making efforts at relationships.
I haven't read every single post above, but I hear you feeling the need to also be independent. But the way to work on connecting more beyond the surface level, might be considering therapy. If you don't feel like the PTSD symptoms are too unmanageable you could look into a finding a therapist who could help more specifically with relational stuff, like connection, attachment issues, avoidance, etc.
On some level, it helps a lot for me to accept who I am sort of by default (introverted and avoidant). It takes down a lot of anxiety and beating myself up. I don't do that too much anymore. But I do have to make really conscious and selective choices about getting more connected to others (like, for me, I can't join a ton of groups...I'll just be exhausted and quit them all). I commit to a 12-step meeting (alcoholic) and getting to know those people better. I'm also considering a meditation group or other religious community, but if the principles don't really jive with me I just stop showing up.
It's a weird battle sometimes...I know I do my isolation to myself, but it also hurts to feel like I'm not right or don't belong. But with growing personal acceptance and the support of a therapist, I am learning to sooth and comfort myself and feel less freaked out by isolation (so therapy can help your independence, really). But I think the awareness of my stuff and connection to a therapist is also helping me better understand who and how I want to connect. I use to burn a lot of energy being superficially connected to way too many people. It's seem isolative now, but I'm pulling out of that habit and trying to accept fewer but more meaningful connections (and here's where I am learning more about my deep avoidance).