One thing I found that made it easier for myself (but it took a long time) was not to "fight" with my T about what she said? If you want your T to talk about your positive things, tell him that. But you don't have a problem with positive things do you? So, it kind of makes sense that he would mention the negative as that's what you are wanting to work on?

In your example, you are doing well but then "flip" into, "I'm afraid it won't last". What would you like to happen in that situation? Do you want to "pretend" that if you don't look at what you are afraid of it can't happen? Do you not want to notice that when you are doing well you try to bring yourself down "before" life/circumstances can do it for you (you think).

You cannot influence what you are doing by thinking about it; you are not "magic" so that you can think things into going well or ill. Yes, you can change your perception and that can change how you feel, etc. but you can decide to think whatever you want and put whatever spin you want on whatever you are thinking and anything anyone else says to you.

I got really angry at my T one week, really really angry, because I asked a worried question and she replied with, "Not if you do things the way you normally do!" I took that as a put-down, that I "normally" foul things up? But then I thought about my T's character, and her and my relationship, and the whole conversation and why she might have said what she said.

After about 72 hours of intense thought, I realized that my analogy would be that we were in a raft together, in the rapids going down the river and she'd seen an ugly rock and yelled, "Watch out!" Remember, you T cannot "do" anything, all the action is from you. All your T can do is try to point out places where you might be stuck or having trouble or need help seeing?

I don't see the example you gave as being triggered. There's nothing else there that was tripping you up, it was just your T looking one way when you wished they'd look the other. That isn't really anything I would get angry about, either; if you would like your T to point out more good things, tell them to do that but, as I said, I don't think you have trouble with good things (other than with trying to sabotage yourself by worrying about when they might end instead of enjoying them and/or if you're worried, not looking at it and then getting unhappy with your T for doing so when you are the one who brought it up?).

But I think it is a great topic of conversation to have with your T, how you'd like to feel he was more "with" you in the good times? But then, you would need to catch yourself changing the focus of conversation to "what if it goes bad?"?