Hi suematt, welcome to the forum! I have been T1 for some 30 years now and I am 52. I am experiencing a worsening in BG control as of late, and my doctor said it is probably due to menopause, which makes control more difficult and BG levels definitely more erratic… He advised I just check often and devote more time and brain to try sorting things out, but without turning obsessive. There's so much about BG levels that we can't control, please don't feel angry with yourself. Remember that your body does not just lack insulin, but at least other 5 glucose-managing hormones (insulin is the only one we can replace… still imperfectly, as yet), so reaching a next-to-normal BG control is a bet most of the time, no matter how hard we try. Of course we keep trying, because whatever little bit we can do goes all to our advantage. But manually performing the functions of a pancreas IS a risky and tricky and overwhelming task. We are bound to blow something now and then… but we should congratulate ourselves on our many achievements as well. (Heroes. We're absolute heroes, focus on that one).
As for a pump, I don't know. I never used one, but my sister did (for 10 years or so) and has recently gone back to MDI, she told me her pump had brought no significant improvement. Whether a pump can be useful or not depends on so many things, so yes, you are right: the best thing would be to ask your GP, he can surely help you making a decision.
A big hug and best, warmest, wishes.