Paper Piecing might be just the thing to encourage you - the points and seams line up no matter what you do. But you also need to remember that quilting is a journey, not a destination and much of that journey is spent improving our skills. You are not going to be perfect immediately and you need to give yourself permission to be less than perfect.
I started quilting in 1989 and still screw up plenty. Seams that don't match up or a block that is a little smaller than it should be. Like you, I usually do things with ease but quilting keeps me humble. :wink:
Stick with it - you're going to be just fine.