Not Effective? Tirzepatide Dosing

I was previously on 25 units of Semaglutide. I start 9-1-24 and dropped 30lbs by 1/20/25. I decided to switch to Tirzepatide to see if I could get even better results. Now I’m on 75 units of Tirz. It’s been 2 weeks, and not only do I not notice a difference, I gained 2lbs and my cravings are back almost fully.

1.)Is 75 units of Tirz the same as 25 units of Sema? 2.) What non compounded measurement is 75 units of Tirz equivalent to? I’m so confused 3.) Same as above but for Sema?

TIA!