That's a nice number. An hour after the shot and after a meal, it's probably (more or less) similar to what the pre-shot would have been. It's maybe a little lower than we usually recommend shooting before there's a fair amount of data, especially with an AT, which I think is what you are using?, but it's still quite a safe number. When very new, we usually set 200 (or a bit higher for an AT) as the no-shoot number, but as you gather more data you can move that threshold down quite a bit.
It can be quite a struggle to test in the beginning! It does get easier, and you are doing the right things. What size (gauge number) lancet are you using? The lower numbers (=larger size), 26 or 28, do make things easier in the beginning. But a lot of it is just time and giving her ears a chance to grow new capillaries to make it easier to get blood. Hang in there!
If there's any way you can get another test today, maybe around +4 or so, it would be great. If you can't, just keep an eye on her, make sure she has food available (especially if she starts acting hungry). Like I said, 133 is quite safe, we just want to make sure she doesn't go too low (68 is the "take action" number on an AlphaTrak pet meter, 50 is "take action" on a human meter). It's really encouraging that her numbers are so good right in the beginning like this!