The only problem I see with my T, is that she has this belief in me that I am a very strong and resilient individual, to have gotten to where I am based on my past experiences. While I like this idea and see her point as confidence and esteem building, sometimes I think this assertion of hers is an unrealistic expectation of my coping skills.
Maybe it's an unrealistic expectation of your coping skills and maybe not. You can only know if you ask her. It's possible that she's simply saying you're strong to have got yourself through to this point in one piece, and to her that doesn't have anything to do with being strong enough to dive into trauma work right now. In fact, If I've understood right, then she thought - and still thinks - more time and work is needed beforehand.
Is it possible, that you're making some assumptions which might not actually be the case.... ? I think it's really good to talk with your therapist about what both of you are thinking, otherwise all sorts of miscommunications or misunderstandings can occur.
Investing time in skills work and building up a relationship/safe approaches to working with your therapist will pay off many times over. I don't know if it would help to think of it like running a marathon (assuming you're not already a marathon runner). If you went out tomorrow and tried to run 26 miles, would you be likely to make it? Then if you left it one week and tried 26 miles again, then left it another week before trying 26 miles again, and so on... how likely would you be after six months, a year, even several years, to have run 26 miles on one of those days? Probably not likely at all, because you still wouldn't have built the capacity to do it and you would be overstraining and injuring yourself as well.
People who are successful in running marathons learn how to warm up and cool down, how to monitor and pace themselves. They start running/walking for maybe 10 minutes, then repeating that frequently, gradually increasing it over time. Trying to do it before you're ready doesn't get you anywhere - instead it's dispiriting and damaging. Whereas learning and building up your strength (skills) might take more than six months, but it would get you there.