@ScarlettMcCain the Monj website indicates which pharmacies offer additional support/coaching. But, from what I've seen discussed here, you pay more and the quality of support is not really up to much. Personally, I don't want any support or coaching, I do just want to be left alone so I value a pharmacy that will send me the medication and nothing else.
Mounjaro or Wegovy are the two options, and Mounjaro has a higher average weight lost from the research trial (22% of starting weight) than Wegovy (16% of starting weight). I had a lot of weight to lose, so went with Mounjaro.
To get started, you choose a pharmacy, fill out their form, provide the information and photos/id they ask for and pay. Some do video calls to verify your weight. They then review and approve (or reject), and then send you out the pen. It will be packaged as a cold delivery as it needs to be kept at fridge temp before use, so will come with ice packs and insulation. Stick the medication box with the pen in the fridge until you're ready to do the first injection. The pharmacy should supply the separate single-use needles, and some alcohol wipes. There are full instructions on the paper leaflet in the box with the pen. You follow the instructions to do the first injection, and that's pretty much it. You may find that the initial dose level doesn't do much for you, which is very normal. You may find it works from day 1, and you find that you're eating a lot less and getting full much quicker. Some people never get side effects, some get them straight away, generally they are associated with the first week or so of moving up a dose level.
It's a tool to help you stick to a calorie deficit - I think we all know what we're supposed to do but struggle to stick to it. WLIs help with that. It doesn't have to be any more complex than that. People like to discuss macros, protein amounts, exercise, supplements etc etc which is fine if you want to, but not necessary. Stick to a healthy diet that prioritises protein and is lower in carbs, do what exercise you can, things that involve strength are great alongside cardio. That's it.