Once you've been on it a while, get labs done to check your A1C. Mine dropped enough on Mounjaro, down to 4.5, that Metformin got dropped from my routine entirely, worth digging through older posts in this group for more on that topic. An app for tracking calories, protein, and fiber helps a lot, something like Lose It, and a separate one for logging injections works well too. My side effects stayed mild aside from constipation, but everyone reacts differently so you'll need to find what works for your body. Best of luck on this.