It's pretty natural to want to rush the results of TPP. I've done that at times, myself. And I think that can be one of the hardest things to overcome, honestly, because we all go into TPP wanting to get rid of our pain or umcomfortable lives (aka - we go in seeking comfort). If we're lucky, we not only realize on the surface level that we're actually wanting to feel content no matter what we feel, but we also integrate it on a subconscious level. We know this happens when we stop seeking comfort, stop trying to feel better, stop hoping our illnesses or pains will go away, and stop rushing to get there. It's like we finally stop trying to "fix" ourselves, recognizing there's nothing to be fixed.
Impatience is just wanting to feel better than we feel in this moment. If we were content in the present moment, we wouldn't try to rush the present moment impatiently to get to a "better" moment. No worries about it though, of course, since it's what we require.

We just have to feel it out on our own and see where it takes us. I'm not very good at this yet, to be honest (or maybe I still have some standard I'm measuring myself again). I know there's nothing to be fixed, and part of me believes it subconsciously, but part of me doesn't yet. So I keep seeking "fixes" periodically rather than just relaxing into the moment. I think the best way is probably just to recognize the "fixing" mindset and stop the "fixing" when it happens. And then see how it feels when we're not fixing anything so we can be with those emotions.
It's very difficult to understand that the goal is not to get out of pain--it's to be content with pain. The pain resolving as a result is just a bi-product, and we never know how long that might take. But learning to feel everything we feel, rather than repressing it all, and being happy with all of it is the goal. Why do we need to be out of pain (emotional & physical) if we're content when in it? That's a tough question to ponder and understand.
My guess is that you're correct in thinking that you are subconsciously holding expectations on yourself. When I find myself rushing, I try to stop myself and say, "What's going to happen if I'm late? And how does that make me feel? And what's the other anxiety feeling that I'm feeling that's driving me to hurry instead of relax and accept?" What I usually find is that I'm expecting more of myself than I can reasonably accomplish, which sets me up for being angry with myself and shaming myself when I don't accomplish it. So I'm creating the entire situation by expecting too much of myself and setting up my schedule that way. I hate to rush, so I try to catch this when it happens and change my schedule so I can have plenty of time to do everything I need to do. That's being loving to myself, not expecting too much. Driving myself crazy trying to make others happy or achieve more is just a recipe for disaster. lol It'll all work out one way or another. And I'll get where I'm going when I get there, no matter where I'm going--and everything's going to be okay, regardless. So to break it down simply: I fear (subconscious anxiety), then I try to control things to repress the fear (rushing around or trying to do too much), then I end up feeling stressed out or shameful or whatever. Control through more work or avoidance is always caused by fear of something.
But none of that matters. All we really have to do is ask, "How does this make me feel?" and then feel it without a rushing reaction. So we stop rushing, and feel what we feel. Simple as that, really. Oh, and we start working our schedules so we have plenty of time to do what we need to do. If we believe we can't do that with our schedules because we fear getting fired or having to quit, we just acknowledge, "You know what? I'm not really powerless over this. I actually can quit if I want, or find a better job, or just scale down the demands of this current job and risk getting fired...and it'll be okay. Everything that happens in this life is supposed to for whatever reason, and I really can't control it. All I can do is accept it and be content with it, or complain and make myself miserable about it." lol If I were in a situation like yours, I'd schedule less meetings, drop all expectations of myself consciously as best I can (giving myself permission to do whatever I think is best), and remove all pressures from myself by saying, "I'm in control of my life, so I need to actually take control and stop feeling like I'm controlled by my life." That way, I don't allow the illusion of pressure drive my decisions. I take responsibility and realize that I really am free. Sure, my actions could have difficult consequences, but I'll be fine one way or the other, even if I'm homeless and die. Heck, I'd be kickin' back with God and all the other people in paradise at that point, so that sounds like a damn good deal to me. LOL
I've been at this for a year and a half now. My life's not perfect, nor should it be, but I'm a lot more content now and enjoy life a lot more than I used to, and I'm better at knowing how to love myself more actively with the way I conduct my life. That's huge.

And I figure it'll probably take a long time to really to get good at living life the way TPP suggests. And that's okay.
Everyone's situation is a little different, so I just feel it out for myself and see what works best for me. That's about the best I can do, really.
Sounds like you're seeing slow progress, which means you're on the right track.

Awesome!