You have already started by asking this. Hi!
I think your first place is looking at the already existing threads, which are honestly a wealth of information.
You also would want to find an online provider you like, and fill out their online consultation form (they'll also ask for photos). This is very straightforward.
The injectables available would be Wegovy and Mounjaro.
You will notice, most of us here, are on Mounjaro, and we LOVE it.
Objectively, both medications are effective and good, and give great results, but Mounjaro reports fewer side effects and bigger losses (especially if you have more to lose).
The injections themselves are painless, absolutely, you won't feel a thing. You're gonna freak out the first time you do it, it would seem like this big monumental thing (and it probably is), you will read the instructions 7 times, you might be nervous. And that's okay. It becomes second nature.
The medication will take care of that pesky food noise and cravings, leaving you free to focus on creating new healthy habits around food and exercise. Repeat after me: water, protein, fiber, movement.
The weight will start melting off, and you won't quite believe your eyes. You will feel and look better than you have in a long long long time, and your only regret would be that you didn't start this sooner.
You got this. Good luck!